391545980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{52769}}^1$

素因数の和:52838

約数の個数: 48

約数和(自身を含む): 957458880

約数和(自身を除く): 565912900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 52769, 105538, 211076, 263845, 369383, 527690, 738766, 1055380, 1477532, 1846915, 2796757, 3693830, 5593514, 7387660, 11187028, 13983785, 19577299, 27967570, 39154598, 55935140, 78309196, 97886495, 195772990, 391545980]

約数ペア:

[(1, 391545980), (2, 195772990), (4, 97886495), (5, 78309196), (7, 55935140), (10, 39154598), (14, 27967570), (20, 19577299), (28, 13983785), (35, 11187028), (53, 7387660), (70, 5593514), (106, 3693830), (140, 2796757), (212, 1846915), (265, 1477532), (371, 1055380), (530, 738766), (742, 527690), (1060, 369383), (1484, 263845), (1855, 211076), (3710, 105538), (7420, 52769)]