15986740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1483}}^1$

素因数の和:1517

約数の個数: 72

約数和(自身を含む): 42632352

約数和(自身を除く): 26645612

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1483, 1540, 2156, 2695, 2966, 5390, 5932, 7415, 10381, 10780, 14830, 16313, 20762, 29660, 32626, 41524, 51905, 65252, 72667, 81565, 103810, 114191, 145334, 163130, 207620, 228382, 290668, 326260, 363335, 456764, 570955, 726670, 799337, 1141910, 1453340, 1598674, 2283820, 3197348, 3996685, 7993370, 15986740]

約数ペア:

[(1, 15986740), (2, 7993370), (4, 3996685), (5, 3197348), (7, 2283820), (10, 1598674), (11, 1453340), (14, 1141910), (20, 799337), (22, 726670), (28, 570955), (35, 456764), (44, 363335), (49, 326260), (55, 290668), (70, 228382), (77, 207620), (98, 163130), (110, 145334), (140, 114191), (154, 103810), (196, 81565), (220, 72667), (245, 65252), (308, 51905), (385, 41524), (490, 32626), (539, 29660), (770, 20762), (980, 16313), (1078, 14830), (1483, 10780), (1540, 10381), (2156, 7415), (2695, 5932), (2966, 5390)]