151221720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:170

約数の個数: 256

約数和(自身を含む): 522547200

約数和(自身を除く): 371325480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 53, 59, 60, 62, 65, 78, 93, 104, 106, 118, 120, 124, 130, 155, 156, 159, 177, 186, 195, 212, 236, 248, 260, 265, 295, 310, 312, 318, 354, 372, 390, 403, 424, 465, 472, 520, 530, 590, 620, 636, 689, 708, 744, 767, 780, 795, 806, 885, 930, 1060, 1180, 1209, 1240, 1272, 1378, 1416, 1534, 1560, 1590, 1612, 1643, 1770, 1829, 1860, 2015, 2067, 2120, 2301, 2360, 2418, 2756, 3068, 3127, 3180, 3224, 3286, 3445, 3540, 3658, 3720, 3835, 4030, 4134, 4602, 4836, 4929, 5487, 5512, 6045, 6136, 6254, 6360, 6572, 6890, 7080, 7316, 7670, 8060, 8215, 8268, 9145, 9204, 9381, 9672, 9858, 10335, 10974, 11505, 12090, 12508, 13144, 13780, 14632, 15340, 15635, 16120, 16430, 16536, 18290, 18408, 18762, 19716, 20670, 21359, 21948, 23010, 23777, 24180, 24645, 25016, 27435, 27560, 30680, 31270, 32860, 36580, 37524, 39432, 40651, 41340, 42718, 43896, 46020, 46905, 47554, 48360, 49290, 54870, 62540, 64077, 65720, 71331, 73160, 75048, 81302, 82680, 85436, 92040, 93810, 95108, 96937, 98580, 106795, 109740, 118885, 121953, 125080, 128154, 142662, 162604, 170872, 187620, 190216, 193874, 197160, 203255, 213590, 219480, 237770, 243906, 256308, 285324, 290811, 320385, 325208, 356655, 375240, 387748, 406510, 427180, 475540, 484685, 487812, 512616, 570648, 581622, 609765, 640770, 713310, 775496, 813020, 854360, 951080, 969370, 975624, 1163244, 1219530, 1260181, 1281540, 1426620, 1454055, 1626040, 1938740, 2326488, 2439060, 2520362, 2563080, 2853240, 2908110, 3780543, 3877480, 4878120, 5040724, 5816220, 6300905, 7561086, 10081448, 11632440, 12601810, 15122172, 18902715, 25203620, 30244344, 37805430, 50407240, 75610860, 151221720]

約数ペア:

[(1, 151221720), (2, 75610860), (3, 50407240), (4, 37805430), (5, 30244344), (6, 25203620), (8, 18902715), (10, 15122172), (12, 12601810), (13, 11632440), (15, 10081448), (20, 7561086), (24, 6300905), (26, 5816220), (30, 5040724), (31, 4878120), (39, 3877480), (40, 3780543), (52, 2908110), (53, 2853240), (59, 2563080), (60, 2520362), (62, 2439060), (65, 2326488), (78, 1938740), (93, 1626040), (104, 1454055), (106, 1426620), (118, 1281540), (120, 1260181), (124, 1219530), (130, 1163244), (155, 975624), (156, 969370), (159, 951080), (177, 854360), (186, 813020), (195, 775496), (212, 713310), (236, 640770), (248, 609765), (260, 581622), (265, 570648), (295, 512616), (310, 487812), (312, 484685), (318, 475540), (354, 427180), (372, 406510), (390, 387748), (403, 375240), (424, 356655), (465, 325208), (472, 320385), (520, 290811), (530, 285324), (590, 256308), (620, 243906), (636, 237770), (689, 219480), (708, 213590), (744, 203255), (767, 197160), (780, 193874), (795, 190216), (806, 187620), (885, 170872), (930, 162604), (1060, 142662), (1180, 128154), (1209, 125080), (1240, 121953), (1272, 118885), (1378, 109740), (1416, 106795), (1534, 98580), (1560, 96937), (1590, 95108), (1612, 93810), (1643, 92040), (1770, 85436), (1829, 82680), (1860, 81302), (2015, 75048), (2067, 73160), (2120, 71331), (2301, 65720), (2360, 64077), (2418, 62540), (2756, 54870), (3068, 49290), (3127, 48360), (3180, 47554), (3224, 46905), (3286, 46020), (3445, 43896), (3540, 42718), (3658, 41340), (3720, 40651), (3835, 39432), (4030, 37524), (4134, 36580), (4602, 32860), (4836, 31270), (4929, 30680), (5487, 27560), (5512, 27435), (6045, 25016), (6136, 24645), (6254, 24180), (6360, 23777), (6572, 23010), (6890, 21948), (7080, 21359), (7316, 20670), (7670, 19716), (8060, 18762), (8215, 18408), (8268, 18290), (9145, 16536), (9204, 16430), (9381, 16120), (9672, 15635), (9858, 15340), (10335, 14632), (10974, 13780), (11505, 13144), (12090, 12508)]