1215702640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{569}}^1\times {\mathrm{1571}}^1$

素因数の和:2170

約数の個数: 80

約数和(自身を含む): 2999941920

約数和(自身を除く): 1784239280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 569, 680, 1138, 1360, 1571, 2276, 2845, 3142, 4552, 5690, 6284, 7855, 9104, 9673, 11380, 12568, 15710, 19346, 22760, 25136, 26707, 31420, 38692, 45520, 48365, 53414, 62840, 77384, 96730, 106828, 125680, 133535, 154768, 193460, 213656, 267070, 386920, 427312, 534140, 773840, 893899, 1068280, 1787798, 2136560, 3575596, 4469495, 7151192, 8938990, 14302384, 15196283, 17877980, 30392566, 35755960, 60785132, 71511920, 75981415, 121570264, 151962830, 243140528, 303925660, 607851320, 1215702640]

約数ペア:

[(1, 1215702640), (2, 607851320), (4, 303925660), (5, 243140528), (8, 151962830), (10, 121570264), (16, 75981415), (17, 71511920), (20, 60785132), (34, 35755960), (40, 30392566), (68, 17877980), (80, 15196283), (85, 14302384), (136, 8938990), (170, 7151192), (272, 4469495), (340, 3575596), (569, 2136560), (680, 1787798), (1138, 1068280), (1360, 893899), (1571, 773840), (2276, 534140), (2845, 427312), (3142, 386920), (4552, 267070), (5690, 213656), (6284, 193460), (7855, 154768), (9104, 133535), (9673, 125680), (11380, 106828), (12568, 96730), (15710, 77384), (19346, 62840), (22760, 53414), (25136, 48365), (26707, 45520), (31420, 38692)]