217268520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3643}}^1$

素因数の和:3735

約数の個数: 128

約数和(自身を含む): 755619840

約数和(自身を除く): 538351320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3643, 3976, 4260, 4970, 5964, 7286, 7455, 8520, 9940, 10929, 11928, 14572, 14910, 18215, 19880, 21858, 25501, 29144, 29820, 36430, 43716, 51002, 54645, 59640, 72860, 76503, 87432, 102004, 109290, 127505, 145720, 153006, 204008, 218580, 255010, 258653, 306012, 382515, 437160, 510020, 517306, 612024, 765030, 775959, 1020040, 1034612, 1293265, 1530060, 1551918, 1810571, 2069224, 2586530, 3060120, 3103836, 3621142, 3879795, 5173060, 5431713, 6207672, 7242284, 7759590, 9052855, 10346120, 10863426, 14484568, 15519180, 18105710, 21726852, 27158565, 31038360, 36211420, 43453704, 54317130, 72422840, 108634260, 217268520]

約数ペア:

[(1, 217268520), (2, 108634260), (3, 72422840), (4, 54317130), (5, 43453704), (6, 36211420), (7, 31038360), (8, 27158565), (10, 21726852), (12, 18105710), (14, 15519180), (15, 14484568), (20, 10863426), (21, 10346120), (24, 9052855), (28, 7759590), (30, 7242284), (35, 6207672), (40, 5431713), (42, 5173060), (56, 3879795), (60, 3621142), (70, 3103836), (71, 3060120), (84, 2586530), (105, 2069224), (120, 1810571), (140, 1551918), (142, 1530060), (168, 1293265), (210, 1034612), (213, 1020040), (280, 775959), (284, 765030), (355, 612024), (420, 517306), (426, 510020), (497, 437160), (568, 382515), (710, 306012), (840, 258653), (852, 255010), (994, 218580), (1065, 204008), (1420, 153006), (1491, 145720), (1704, 127505), (1988, 109290), (2130, 102004), (2485, 87432), (2840, 76503), (2982, 72860), (3643, 59640), (3976, 54645), (4260, 51002), (4970, 43716), (5964, 36430), (7286, 29820), (7455, 29144), (8520, 25501), (9940, 21858), (10929, 19880), (11928, 18215), (14572, 14910)]