1971564840

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1039}}^1$

素因数の和:1317

約数の個数: 256

約数和(自身を含む): 7547904000

約数和(自身を除く): 5576339160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 251, 252, 270, 280, 315, 360, 378, 420, 502, 504, 540, 630, 753, 756, 840, 945, 1004, 1039, 1080, 1255, 1260, 1506, 1512, 1757, 1890, 2008, 2078, 2259, 2510, 2520, 3012, 3117, 3514, 3765, 3780, 4156, 4518, 5020, 5195, 5271, 6024, 6234, 6777, 7028, 7273, 7530, 7560, 8312, 8785, 9036, 9351, 10040, 10390, 10542, 11295, 12468, 13554, 14056, 14546, 15060, 15585, 15813, 17570, 18072, 18702, 20780, 21084, 21819, 22590, 24936, 26355, 27108, 28053, 29092, 30120, 31170, 31626, 33885, 35140, 36365, 37404, 41560, 42168, 43638, 45180, 46755, 47439, 52710, 54216, 56106, 58184, 62340, 63252, 65457, 67770, 70280, 72730, 74808, 79065, 87276, 90360, 93510, 94878, 105420, 109095, 112212, 124680, 126504, 130914, 135540, 140265, 145460, 158130, 174552, 187020, 189756, 196371, 210840, 218190, 224424, 237195, 260789, 261828, 271080, 280530, 290920, 316260, 327285, 374040, 379512, 392742, 436380, 474390, 521578, 523656, 561060, 632520, 654570, 782367, 785484, 872760, 948780, 981855, 1043156, 1122120, 1303945, 1309140, 1564734, 1570968, 1825523, 1897560, 1963710, 2086312, 2347101, 2607890, 2618280, 3129468, 3651046, 3911835, 3927420, 4694202, 5215780, 5476569, 6258936, 7041303, 7302092, 7823670, 7854840, 9127615, 9388404, 10431560, 10953138, 11735505, 14082606, 14604184, 15647340, 16429707, 18255230, 18776808, 21906276, 23471010, 27382845, 28165212, 31294680, 32859414, 35206515, 36510460, 43812552, 46942020, 49289121, 54765690, 56330424, 65718828, 70413030, 73020920, 82148535, 93884040, 98578242, 109531380, 131437656, 140826060, 164297070, 197156484, 219062760, 246445605, 281652120, 328594140, 394312968, 492891210, 657188280, 985782420, 1971564840]

約数ペア:

[(1, 1971564840), (2, 985782420), (3, 657188280), (4, 492891210), (5, 394312968), (6, 328594140), (7, 281652120), (8, 246445605), (9, 219062760), (10, 197156484), (12, 164297070), (14, 140826060), (15, 131437656), (18, 109531380), (20, 98578242), (21, 93884040), (24, 82148535), (27, 73020920), (28, 70413030), (30, 65718828), (35, 56330424), (36, 54765690), (40, 49289121), (42, 46942020), (45, 43812552), (54, 36510460), (56, 35206515), (60, 32859414), (63, 31294680), (70, 28165212), (72, 27382845), (84, 23471010), (90, 21906276), (105, 18776808), (108, 18255230), (120, 16429707), (126, 15647340), (135, 14604184), (140, 14082606), (168, 11735505), (180, 10953138), (189, 10431560), (210, 9388404), (216, 9127615), (251, 7854840), (252, 7823670), (270, 7302092), (280, 7041303), (315, 6258936), (360, 5476569), (378, 5215780), (420, 4694202), (502, 3927420), (504, 3911835), (540, 3651046), (630, 3129468), (753, 2618280), (756, 2607890), (840, 2347101), (945, 2086312), (1004, 1963710), (1039, 1897560), (1080, 1825523), (1255, 1570968), (1260, 1564734), (1506, 1309140), (1512, 1303945), (1757, 1122120), (1890, 1043156), (2008, 981855), (2078, 948780), (2259, 872760), (2510, 785484), (2520, 782367), (3012, 654570), (3117, 632520), (3514, 561060), (3765, 523656), (3780, 521578), (4156, 474390), (4518, 436380), (5020, 392742), (5195, 379512), (5271, 374040), (6024, 327285), (6234, 316260), (6777, 290920), (7028, 280530), (7273, 271080), (7530, 261828), (7560, 260789), (8312, 237195), (8785, 224424), (9036, 218190), (9351, 210840), (10040, 196371), (10390, 189756), (10542, 187020), (11295, 174552), (12468, 158130), (13554, 145460), (14056, 140265), (14546, 135540), (15060, 130914), (15585, 126504), (15813, 124680), (17570, 112212), (18072, 109095), (18702, 105420), (20780, 94878), (21084, 93510), (21819, 90360), (22590, 87276), (24936, 79065), (26355, 74808), (27108, 72730), (28053, 70280), (29092, 67770), (30120, 65457), (31170, 63252), (31626, 62340), (33885, 58184), (35140, 56106), (36365, 54216), (37404, 52710), (41560, 47439), (42168, 46755), (43638, 45180)]