208876280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307171}}^1$

素因数の和:307199

約数の個数: 32

約数和(自身を含む): 497618640

約数和(自身を除く): 288742360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 307171, 614342, 1228684, 1535855, 2457368, 3071710, 5221907, 6143420, 10443814, 12286840, 20887628, 26109535, 41775256, 52219070, 104438140, 208876280]

約数ペア:

[(1, 208876280), (2, 104438140), (4, 52219070), (5, 41775256), (8, 26109535), (10, 20887628), (17, 12286840), (20, 10443814), (34, 6143420), (40, 5221907), (68, 3071710), (85, 2457368), (136, 1535855), (170, 1228684), (340, 614342), (680, 307171)]