172671240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:420

約数の個数: 256

約数和(自身を含む): 645120000

約数和(自身を除く): 472448760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 31, 35, 38, 40, 42, 56, 57, 60, 62, 70, 76, 84, 93, 95, 105, 114, 120, 124, 133, 140, 152, 155, 168, 186, 190, 210, 217, 228, 248, 266, 280, 285, 310, 349, 372, 380, 399, 420, 434, 456, 465, 532, 570, 589, 620, 651, 665, 698, 744, 760, 798, 840, 868, 930, 1047, 1064, 1085, 1140, 1178, 1240, 1302, 1330, 1396, 1596, 1736, 1745, 1767, 1860, 1995, 2094, 2170, 2280, 2356, 2443, 2604, 2660, 2792, 2945, 3192, 3255, 3490, 3534, 3720, 3990, 4123, 4188, 4340, 4712, 4886, 5208, 5235, 5320, 5890, 6510, 6631, 6980, 7068, 7329, 7980, 8246, 8376, 8680, 8835, 9772, 10470, 10819, 11780, 12215, 12369, 13020, 13262, 13960, 14136, 14658, 15960, 16492, 17670, 19544, 19893, 20615, 20940, 21638, 23560, 24430, 24738, 26040, 26524, 29316, 32457, 32984, 33155, 35340, 36645, 39786, 41230, 41880, 43276, 46417, 48860, 49476, 53048, 54095, 58632, 61845, 64914, 66310, 70680, 73290, 75733, 79572, 82460, 86552, 92834, 97720, 98952, 99465, 108190, 123690, 129828, 132620, 139251, 146580, 151466, 159144, 162285, 164920, 185668, 198930, 205561, 216380, 227199, 232085, 247380, 259656, 265240, 278502, 293160, 302932, 324570, 371336, 378665, 397860, 411122, 432760, 454398, 464170, 494760, 557004, 605864, 616683, 649140, 696255, 757330, 795720, 822244, 908796, 928340, 1027805, 1114008, 1135995, 1233366, 1298280, 1392510, 1438927, 1514660, 1644488, 1817592, 1856680, 2055610, 2271990, 2466732, 2785020, 2877854, 3029320, 3083415, 4111220, 4316781, 4543980, 4933464, 5570040, 5755708, 6166830, 7194635, 8222440, 8633562, 9087960, 11511416, 12333660, 14389270, 17267124, 21583905, 24667320, 28778540, 34534248, 43167810, 57557080, 86335620, 172671240]

約数ペア:

[(1, 172671240), (2, 86335620), (3, 57557080), (4, 43167810), (5, 34534248), (6, 28778540), (7, 24667320), (8, 21583905), (10, 17267124), (12, 14389270), (14, 12333660), (15, 11511416), (19, 9087960), (20, 8633562), (21, 8222440), (24, 7194635), (28, 6166830), (30, 5755708), (31, 5570040), (35, 4933464), (38, 4543980), (40, 4316781), (42, 4111220), (56, 3083415), (57, 3029320), (60, 2877854), (62, 2785020), (70, 2466732), (76, 2271990), (84, 2055610), (93, 1856680), (95, 1817592), (105, 1644488), (114, 1514660), (120, 1438927), (124, 1392510), (133, 1298280), (140, 1233366), (152, 1135995), (155, 1114008), (168, 1027805), (186, 928340), (190, 908796), (210, 822244), (217, 795720), (228, 757330), (248, 696255), (266, 649140), (280, 616683), (285, 605864), (310, 557004), (349, 494760), (372, 464170), (380, 454398), (399, 432760), (420, 411122), (434, 397860), (456, 378665), (465, 371336), (532, 324570), (570, 302932), (589, 293160), (620, 278502), (651, 265240), (665, 259656), (698, 247380), (744, 232085), (760, 227199), (798, 216380), (840, 205561), (868, 198930), (930, 185668), (1047, 164920), (1064, 162285), (1085, 159144), (1140, 151466), (1178, 146580), (1240, 139251), (1302, 132620), (1330, 129828), (1396, 123690), (1596, 108190), (1736, 99465), (1745, 98952), (1767, 97720), (1860, 92834), (1995, 86552), (2094, 82460), (2170, 79572), (2280, 75733), (2356, 73290), (2443, 70680), (2604, 66310), (2660, 64914), (2792, 61845), (2945, 58632), (3192, 54095), (3255, 53048), (3490, 49476), (3534, 48860), (3720, 46417), (3990, 43276), (4123, 41880), (4188, 41230), (4340, 39786), (4712, 36645), (4886, 35340), (5208, 33155), (5235, 32984), (5320, 32457), (5890, 29316), (6510, 26524), (6631, 26040), (6980, 24738), (7068, 24430), (7329, 23560), (7980, 21638), (8246, 20940), (8376, 20615), (8680, 19893), (8835, 19544), (9772, 17670), (10470, 16492), (10819, 15960), (11780, 14658), (12215, 14136), (12369, 13960), (13020, 13262)]