38337640

素因数分解:

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

素因数の和:211

約数の個数: 72

約数和(自身を含む): 95891670

約数和(自身を除く): 57554030

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 121, 178, 220, 242, 356, 440, 445, 484, 605, 712, 890, 968, 979, 1210, 1780, 1958, 2420, 3560, 3916, 4840, 4895, 7832, 7921, 9790, 10769, 15842, 19580, 21538, 31684, 39160, 39605, 43076, 53845, 63368, 79210, 86152, 87131, 107690, 158420, 174262, 215380, 316840, 348524, 430760, 435655, 697048, 871310, 958441, 1742620, 1916882, 3485240, 3833764, 4792205, 7667528, 9584410, 19168820, 38337640]

約数ペア:

[(1, 38337640), (2, 19168820), (4, 9584410), (5, 7667528), (8, 4792205), (10, 3833764), (11, 3485240), (20, 1916882), (22, 1742620), (40, 958441), (44, 871310), (55, 697048), (88, 435655), (89, 430760), (110, 348524), (121, 316840), (178, 215380), (220, 174262), (242, 158420), (356, 107690), (440, 87131), (445, 86152), (484, 79210), (605, 63368), (712, 53845), (890, 43076), (968, 39605), (979, 39160), (1210, 31684), (1780, 21538), (1958, 19580), (2420, 15842), (3560, 10769), (3916, 9790), (4840, 7921), (4895, 7832)]