18218553680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7346191}}^1$

素因数の和:7346235

約数の個数: 40

約数和(自身を含む): 43724534784

約数和(自身を除く): 25505981104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7346191, 14692382, 29384764, 36730955, 58769528, 73461910, 117539056, 146923820, 227731921, 293847640, 455463842, 587695280, 910927684, 1138659605, 1821855368, 2277319210, 3643710736, 4554638420, 9109276840, 18218553680]

約数ペア:

[(1, 18218553680), (2, 9109276840), (4, 4554638420), (5, 3643710736), (8, 2277319210), (10, 1821855368), (16, 1138659605), (20, 910927684), (31, 587695280), (40, 455463842), (62, 293847640), (80, 227731921), (124, 146923820), (155, 117539056), (248, 73461910), (310, 58769528), (496, 36730955), (620, 29384764), (1240, 14692382), (2480, 7346191)]