20418940728

素因数分解:

$2^3\times 3^4\times {\mathrm{4813}}^1\times {\mathrm{6547}}^1$

素因数の和:11378

約数の個数: 80

約数和(自身を含む): 57212560680

約数和(自身を除く): 36793619952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 4813, 6547, 9626, 13094, 14439, 19252, 19641, 26188, 28878, 38504, 39282, 43317, 52376, 57756, 58923, 78564, 86634, 115512, 117846, 129951, 157128, 173268, 176769, 235692, 259902, 346536, 353538, 389853, 471384, 519804, 530307, 707076, 779706, 1039608, 1060614, 1414152, 1559412, 2121228, 3118824, 4242456, 31510711, 63021422, 94532133, 126042844, 189064266, 252085688, 283596399, 378128532, 567192798, 756257064, 850789197, 1134385596, 1701578394, 2268771192, 2552367591, 3403156788, 5104735182, 6806313576, 10209470364, 20418940728]

約数ペア:

[(1, 20418940728), (2, 10209470364), (3, 6806313576), (4, 5104735182), (6, 3403156788), (8, 2552367591), (9, 2268771192), (12, 1701578394), (18, 1134385596), (24, 850789197), (27, 756257064), (36, 567192798), (54, 378128532), (72, 283596399), (81, 252085688), (108, 189064266), (162, 126042844), (216, 94532133), (324, 63021422), (648, 31510711), (4813, 4242456), (6547, 3118824), (9626, 2121228), (13094, 1559412), (14439, 1414152), (19252, 1060614), (19641, 1039608), (26188, 779706), (28878, 707076), (38504, 530307), (39282, 519804), (43317, 471384), (52376, 389853), (57756, 353538), (58923, 346536), (78564, 259902), (86634, 235692), (115512, 176769), (117846, 173268), (129951, 157128)]