64139440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42197}}^1$

素因数の和:42229

約数の個数: 40

約数和(自身を含む): 156976560

約数和(自身を除く): 92837120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42197, 84394, 168788, 210985, 337576, 421970, 675152, 801743, 843940, 1603486, 1687880, 3206972, 3375760, 4008715, 6413944, 8017430, 12827888, 16034860, 32069720, 64139440]

約数ペア:

[(1, 64139440), (2, 32069720), (4, 16034860), (5, 12827888), (8, 8017430), (10, 6413944), (16, 4008715), (19, 3375760), (20, 3206972), (38, 1687880), (40, 1603486), (76, 843940), (80, 801743), (95, 675152), (152, 421970), (190, 337576), (304, 210985), (380, 168788), (760, 84394), (1520, 42197)]