254716840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{5581}}^1$

素因数の和:5762

約数の個数: 64

約数和(自身を含む): 659122560

約数和(自身を除く): 404405720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 280, 326, 652, 815, 1141, 1304, 1630, 2282, 3260, 4564, 5581, 5705, 6520, 9128, 11162, 11410, 22324, 22820, 27905, 39067, 44648, 45640, 55810, 78134, 111620, 156268, 195335, 223240, 312536, 390670, 781340, 909703, 1562680, 1819406, 3638812, 4548515, 6367921, 7277624, 9097030, 12735842, 18194060, 25471684, 31839605, 36388120, 50943368, 63679210, 127358420, 254716840]

約数ペア:

[(1, 254716840), (2, 127358420), (4, 63679210), (5, 50943368), (7, 36388120), (8, 31839605), (10, 25471684), (14, 18194060), (20, 12735842), (28, 9097030), (35, 7277624), (40, 6367921), (56, 4548515), (70, 3638812), (140, 1819406), (163, 1562680), (280, 909703), (326, 781340), (652, 390670), (815, 312536), (1141, 223240), (1304, 195335), (1630, 156268), (2282, 111620), (3260, 78134), (4564, 55810), (5581, 45640), (5705, 44648), (6520, 39067), (9128, 27905), (11162, 22820), (11410, 22324)]