253667960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{307}}^1$

素因数の和:565

約数の個数: 128

約数和(自身を含む): 707857920

約数和(自身を除く): 454189960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 227, 260, 280, 307, 364, 454, 455, 520, 614, 728, 908, 910, 1135, 1228, 1535, 1589, 1816, 1820, 2149, 2270, 2456, 2951, 3070, 3178, 3640, 3991, 4298, 4540, 5902, 6140, 6356, 7945, 7982, 8596, 9080, 10745, 11804, 12280, 12712, 14755, 15890, 15964, 17192, 19955, 20657, 21490, 23608, 27937, 29510, 31780, 31928, 39910, 41314, 42980, 55874, 59020, 63560, 69689, 79820, 82628, 85960, 103285, 111748, 118040, 139378, 139685, 159640, 165256, 206570, 223496, 278756, 279370, 348445, 413140, 487823, 557512, 558740, 696890, 826280, 905957, 975646, 1117480, 1393780, 1811914, 1951292, 2439115, 2787560, 3623828, 3902584, 4529785, 4878230, 6341699, 7247656, 9059570, 9756460, 12683398, 18119140, 19512920, 25366796, 31708495, 36238280, 50733592, 63416990, 126833980, 253667960]

約数ペア:

[(1, 253667960), (2, 126833980), (4, 63416990), (5, 50733592), (7, 36238280), (8, 31708495), (10, 25366796), (13, 19512920), (14, 18119140), (20, 12683398), (26, 9756460), (28, 9059570), (35, 7247656), (40, 6341699), (52, 4878230), (56, 4529785), (65, 3902584), (70, 3623828), (91, 2787560), (104, 2439115), (130, 1951292), (140, 1811914), (182, 1393780), (227, 1117480), (260, 975646), (280, 905957), (307, 826280), (364, 696890), (454, 558740), (455, 557512), (520, 487823), (614, 413140), (728, 348445), (908, 279370), (910, 278756), (1135, 223496), (1228, 206570), (1535, 165256), (1589, 159640), (1816, 139685), (1820, 139378), (2149, 118040), (2270, 111748), (2456, 103285), (2951, 85960), (3070, 82628), (3178, 79820), (3640, 69689), (3991, 63560), (4298, 59020), (4540, 55874), (5902, 42980), (6140, 41314), (6356, 39910), (7945, 31928), (7982, 31780), (8596, 29510), (9080, 27937), (10745, 23608), (11804, 21490), (12280, 20657), (12712, 19955), (14755, 17192), (15890, 15964)]