291691790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{52181}}^1$

素因数の和:52244

約数の個数: 32

約数和(自身を含む): 578594016

約数和(自身を除く): 286902226

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5590, 52181, 104362, 260905, 521810, 678353, 1356706, 2243783, 3391765, 4487566, 6783530, 11218915, 22437830, 29169179, 58338358, 145845895, 291691790]

約数ペア:

[(1, 291691790), (2, 145845895), (5, 58338358), (10, 29169179), (13, 22437830), (26, 11218915), (43, 6783530), (65, 4487566), (86, 3391765), (130, 2243783), (215, 1356706), (430, 678353), (559, 521810), (1118, 260905), (2795, 104362), (5590, 52181)]