8387980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 18514944

約数和(自身を除く): 10126964

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 163, 166, 310, 326, 332, 415, 620, 652, 815, 830, 1630, 1660, 2573, 3260, 5053, 5146, 10106, 10292, 12865, 13529, 20212, 25265, 25730, 27058, 50530, 51460, 54116, 67645, 101060, 135290, 270580, 419399, 838798, 1677596, 2096995, 4193990, 8387980]

約数ペア:

[(1, 8387980), (2, 4193990), (4, 2096995), (5, 1677596), (10, 838798), (20, 419399), (31, 270580), (62, 135290), (83, 101060), (124, 67645), (155, 54116), (163, 51460), (166, 50530), (310, 27058), (326, 25730), (332, 25265), (415, 20212), (620, 13529), (652, 12865), (815, 10292), (830, 10106), (1630, 5146), (1660, 5053), (2573, 3260)]