20194687880

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1\times {\mathrm{21817}}^1$

素因数の和:22218

約数の個数: 64

約数和(自身を含む): 46207905840

約数和(自身を除く): 26013217960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 317, 365, 584, 634, 730, 1268, 1460, 1585, 2536, 2920, 3170, 6340, 12680, 21817, 23141, 43634, 46282, 87268, 92564, 109085, 115705, 174536, 185128, 218170, 231410, 436340, 462820, 872680, 925640, 1592641, 3185282, 6370564, 6915989, 7963205, 12741128, 13831978, 15926410, 27663956, 31852820, 34579945, 55327912, 63705640, 69159890, 138319780, 276639560, 504867197, 1009734394, 2019468788, 2524335985, 4038937576, 5048671970, 10097343940, 20194687880]

約数ペア:

[(1, 20194687880), (2, 10097343940), (4, 5048671970), (5, 4038937576), (8, 2524335985), (10, 2019468788), (20, 1009734394), (40, 504867197), (73, 276639560), (146, 138319780), (292, 69159890), (317, 63705640), (365, 55327912), (584, 34579945), (634, 31852820), (730, 27663956), (1268, 15926410), (1460, 13831978), (1585, 12741128), (2536, 7963205), (2920, 6915989), (3170, 6370564), (6340, 3185282), (12680, 1592641), (21817, 925640), (23141, 872680), (43634, 462820), (46282, 436340), (87268, 231410), (92564, 218170), (109085, 185128), (115705, 174536)]