140408440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{206483}}^1$

素因数の和:206511

約数の個数: 32

約数和(自身を含む): 334504080

約数和(自身を除く): 194095640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 206483, 412966, 825932, 1032415, 1651864, 2064830, 3510211, 4129660, 7020422, 8259320, 14040844, 17551055, 28081688, 35102110, 70204220, 140408440]

約数ペア:

[(1, 140408440), (2, 70204220), (4, 35102110), (5, 28081688), (8, 17551055), (10, 14040844), (17, 8259320), (20, 7020422), (34, 4129660), (40, 3510211), (68, 2064830), (85, 1651864), (136, 1032415), (170, 825932), (340, 412966), (680, 206483)]