42075640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:376

約数の個数: 64

約数和(自身を含む): 97977600

約数和(自身を除く): 55901960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 89, 106, 178, 212, 223, 265, 356, 424, 445, 446, 530, 712, 890, 892, 1060, 1115, 1780, 1784, 2120, 2230, 3560, 4460, 4717, 8920, 9434, 11819, 18868, 19847, 23585, 23638, 37736, 39694, 47170, 47276, 59095, 79388, 94340, 94552, 99235, 118190, 158776, 188680, 198470, 236380, 396940, 472760, 793880, 1051891, 2103782, 4207564, 5259455, 8415128, 10518910, 21037820, 42075640]

約数ペア:

[(1, 42075640), (2, 21037820), (4, 10518910), (5, 8415128), (8, 5259455), (10, 4207564), (20, 2103782), (40, 1051891), (53, 793880), (89, 472760), (106, 396940), (178, 236380), (212, 198470), (223, 188680), (265, 158776), (356, 118190), (424, 99235), (445, 94552), (446, 94340), (530, 79388), (712, 59095), (890, 47276), (892, 47170), (1060, 39694), (1115, 37736), (1780, 23638), (1784, 23585), (2120, 19847), (2230, 18868), (3560, 11819), (4460, 9434), (4717, 8920)]