64801520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:359

約数の個数: 120

約数和(自身を含む): 178792128

約数和(自身を除く): 113990608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 61, 70, 80, 98, 112, 122, 140, 196, 244, 245, 271, 280, 305, 392, 427, 488, 490, 542, 560, 610, 784, 854, 976, 980, 1084, 1220, 1355, 1708, 1897, 1960, 2135, 2168, 2440, 2710, 2989, 3416, 3794, 3920, 4270, 4336, 4880, 5420, 5978, 6832, 7588, 8540, 9485, 10840, 11956, 13279, 14945, 15176, 16531, 17080, 18970, 21680, 23912, 26558, 29890, 30352, 33062, 34160, 37940, 47824, 53116, 59780, 66124, 66395, 75880, 82655, 106232, 115717, 119560, 132248, 132790, 151760, 165310, 212464, 231434, 239120, 264496, 265580, 330620, 462868, 531160, 578585, 661240, 810019, 925736, 1062320, 1157170, 1322480, 1620038, 1851472, 2314340, 3240076, 4050095, 4628680, 6480152, 8100190, 9257360, 12960304, 16200380, 32400760, 64801520]

約数ペア:

[(1, 64801520), (2, 32400760), (4, 16200380), (5, 12960304), (7, 9257360), (8, 8100190), (10, 6480152), (14, 4628680), (16, 4050095), (20, 3240076), (28, 2314340), (35, 1851472), (40, 1620038), (49, 1322480), (56, 1157170), (61, 1062320), (70, 925736), (80, 810019), (98, 661240), (112, 578585), (122, 531160), (140, 462868), (196, 330620), (244, 265580), (245, 264496), (271, 239120), (280, 231434), (305, 212464), (392, 165310), (427, 151760), (488, 132790), (490, 132248), (542, 119560), (560, 115717), (610, 106232), (784, 82655), (854, 75880), (976, 66395), (980, 66124), (1084, 59780), (1220, 53116), (1355, 47824), (1708, 37940), (1897, 34160), (1960, 33062), (2135, 30352), (2168, 29890), (2440, 26558), (2710, 23912), (2989, 21680), (3416, 18970), (3794, 17080), (3920, 16531), (4270, 15176), (4336, 14945), (4880, 13279), (5420, 11956), (5978, 10840), (6832, 9485), (7588, 8540)]