38654480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^2$

素因数の和:252

約数の個数: 60

約数和(自身を含む): 92382852

約数和(自身を除く): 53728372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 89, 122, 178, 244, 305, 356, 445, 488, 610, 712, 890, 976, 1220, 1424, 1780, 2440, 3560, 4880, 5429, 7120, 7921, 10858, 15842, 21716, 27145, 31684, 39605, 43432, 54290, 63368, 79210, 86864, 108580, 126736, 158420, 217160, 316840, 434320, 483181, 633680, 966362, 1932724, 2415905, 3865448, 4831810, 7730896, 9663620, 19327240, 38654480]

約数ペア:

[(1, 38654480), (2, 19327240), (4, 9663620), (5, 7730896), (8, 4831810), (10, 3865448), (16, 2415905), (20, 1932724), (40, 966362), (61, 633680), (80, 483181), (89, 434320), (122, 316840), (178, 217160), (244, 158420), (305, 126736), (356, 108580), (445, 86864), (488, 79210), (610, 63368), (712, 54290), (890, 43432), (976, 39605), (1220, 31684), (1424, 27145), (1780, 21716), (2440, 15842), (3560, 10858), (4880, 7921), (5429, 7120)]