38681890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1997}}^1$

素因数の和:2166

約数の個数: 32

約数和(自身を含む): 75524400

約数和(自身を除く): 36842510

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1490, 1937, 1997, 3874, 3994, 9685, 9985, 19370, 19970, 25961, 51922, 129805, 259610, 297553, 595106, 1487765, 2975530, 3868189, 7736378, 19340945, 38681890]

約数ペア:

[(1, 38681890), (2, 19340945), (5, 7736378), (10, 3868189), (13, 2975530), (26, 1487765), (65, 595106), (130, 297553), (149, 259610), (298, 129805), (745, 51922), (1490, 25961), (1937, 19970), (1997, 19370), (3874, 9985), (3994, 9685)]