64490940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 209008800

約数和(自身を除く): 144517860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 109, 114, 171, 173, 180, 190, 218, 228, 285, 327, 342, 346, 380, 436, 519, 545, 570, 654, 684, 692, 855, 865, 981, 1038, 1090, 1140, 1308, 1557, 1635, 1710, 1730, 1962, 2071, 2076, 2180, 2595, 3114, 3270, 3287, 3420, 3460, 3924, 4142, 4905, 5190, 6213, 6228, 6540, 6574, 7785, 8284, 9810, 9861, 10355, 10380, 12426, 13148, 15570, 16435, 18639, 18857, 19620, 19722, 20710, 24852, 29583, 31065, 31140, 32870, 37278, 37714, 39444, 41420, 49305, 56571, 59166, 62130, 65740, 74556, 75428, 93195, 94285, 98610, 113142, 118332, 124260, 147915, 169713, 186390, 188570, 197220, 226284, 282855, 295830, 339426, 358283, 372780, 377140, 565710, 591660, 678852, 716566, 848565, 1074849, 1131420, 1433132, 1697130, 1791415, 2149698, 3224547, 3394260, 3582830, 4299396, 5374245, 6449094, 7165660, 10748490, 12898188, 16122735, 21496980, 32245470, 64490940]

約数ペア:

[(1, 64490940), (2, 32245470), (3, 21496980), (4, 16122735), (5, 12898188), (6, 10748490), (9, 7165660), (10, 6449094), (12, 5374245), (15, 4299396), (18, 3582830), (19, 3394260), (20, 3224547), (30, 2149698), (36, 1791415), (38, 1697130), (45, 1433132), (57, 1131420), (60, 1074849), (76, 848565), (90, 716566), (95, 678852), (109, 591660), (114, 565710), (171, 377140), (173, 372780), (180, 358283), (190, 339426), (218, 295830), (228, 282855), (285, 226284), (327, 197220), (342, 188570), (346, 186390), (380, 169713), (436, 147915), (519, 124260), (545, 118332), (570, 113142), (654, 98610), (684, 94285), (692, 93195), (855, 75428), (865, 74556), (981, 65740), (1038, 62130), (1090, 59166), (1140, 56571), (1308, 49305), (1557, 41420), (1635, 39444), (1710, 37714), (1730, 37278), (1962, 32870), (2071, 31140), (2076, 31065), (2180, 29583), (2595, 24852), (3114, 20710), (3270, 19722), (3287, 19620), (3420, 18857), (3460, 18639), (3924, 16435), (4142, 15570), (4905, 13148), (5190, 12426), (6213, 10380), (6228, 10355), (6540, 9861), (6574, 9810), (7785, 8284)]