64104920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1637}}^1$

素因数の和:1748

約数の個数: 64

約数和(自身を含む): 159213600

約数和(自身を除く): 95108680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 1637, 1780, 1958, 3274, 3560, 3916, 4895, 6548, 7832, 8185, 9790, 13096, 16370, 18007, 19580, 32740, 36014, 39160, 65480, 72028, 90035, 144056, 145693, 180070, 291386, 360140, 582772, 720280, 728465, 1165544, 1456930, 1602623, 2913860, 3205246, 5827720, 6410492, 8013115, 12820984, 16026230, 32052460, 64104920]

約数ペア:

[(1, 64104920), (2, 32052460), (4, 16026230), (5, 12820984), (8, 8013115), (10, 6410492), (11, 5827720), (20, 3205246), (22, 2913860), (40, 1602623), (44, 1456930), (55, 1165544), (88, 728465), (89, 720280), (110, 582772), (178, 360140), (220, 291386), (356, 180070), (440, 145693), (445, 144056), (712, 90035), (890, 72028), (979, 65480), (1637, 39160), (1780, 36014), (1958, 32740), (3274, 19580), (3560, 18007), (3916, 16370), (4895, 13096), (6548, 9790), (7832, 8185)]