318207955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 460107648

約数和(自身を除く): 141899693

約数列:

[1, 5, 13, 17, 37, 43, 65, 85, 181, 185, 215, 221, 481, 559, 629, 731, 905, 1105, 1591, 2353, 2405, 2795, 3077, 3145, 3655, 6697, 7783, 7955, 8177, 9503, 11765, 15385, 20683, 27047, 33485, 38915, 40001, 40885, 47515, 87061, 101179, 103415, 113849, 132311, 135235, 200005, 287971, 351611, 435305, 505895, 569245, 661555, 1439855, 1480037, 1720043, 1758055, 3743623, 4895507, 7400185, 8600215, 18718115, 24477535, 63641591, 318207955]

約数ペア:

[(1, 318207955), (5, 63641591), (13, 24477535), (17, 18718115), (37, 8600215), (43, 7400185), (65, 4895507), (85, 3743623), (181, 1758055), (185, 1720043), (215, 1480037), (221, 1439855), (481, 661555), (559, 569245), (629, 505895), (731, 435305), (905, 351611), (1105, 287971), (1591, 200005), (2353, 135235), (2405, 132311), (2795, 113849), (3077, 103415), (3145, 101179), (3655, 87061), (6697, 47515), (7783, 40885), (7955, 40001), (8177, 38915), (9503, 33485), (11765, 27047), (15385, 20683)]