66487840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21871}}^1$

素因数の和:21905

約数の個数: 48

約数和(自身を含む): 165352320

約数和(自身を除く): 98864480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 21871, 43742, 87484, 109355, 174968, 218710, 349936, 415549, 437420, 699872, 831098, 874840, 1662196, 1749680, 2077745, 3324392, 3499360, 4155490, 6648784, 8310980, 13297568, 16621960, 33243920, 66487840]

約数ペア:

[(1, 66487840), (2, 33243920), (4, 16621960), (5, 13297568), (8, 8310980), (10, 6648784), (16, 4155490), (19, 3499360), (20, 3324392), (32, 2077745), (38, 1749680), (40, 1662196), (76, 874840), (80, 831098), (95, 699872), (152, 437420), (160, 415549), (190, 349936), (304, 218710), (380, 174968), (608, 109355), (760, 87484), (1520, 43742), (3040, 21871)]