66358640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{293}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 164052000

約数和(自身を除く): 97693360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 149, 152, 190, 293, 298, 304, 380, 586, 596, 745, 760, 1172, 1192, 1465, 1490, 1520, 2344, 2384, 2831, 2930, 2980, 4688, 5567, 5662, 5860, 5960, 11134, 11324, 11720, 11920, 14155, 22268, 22648, 23440, 27835, 28310, 43657, 44536, 45296, 55670, 56620, 87314, 89072, 111340, 113240, 174628, 218285, 222680, 226480, 349256, 436570, 445360, 698512, 829483, 873140, 1658966, 1746280, 3317932, 3492560, 4147415, 6635864, 8294830, 13271728, 16589660, 33179320, 66358640]

約数ペア:

[(1, 66358640), (2, 33179320), (4, 16589660), (5, 13271728), (8, 8294830), (10, 6635864), (16, 4147415), (19, 3492560), (20, 3317932), (38, 1746280), (40, 1658966), (76, 873140), (80, 829483), (95, 698512), (149, 445360), (152, 436570), (190, 349256), (293, 226480), (298, 222680), (304, 218285), (380, 174628), (586, 113240), (596, 111340), (745, 89072), (760, 87314), (1172, 56620), (1192, 55670), (1465, 45296), (1490, 44536), (1520, 43657), (2344, 28310), (2384, 27835), (2831, 23440), (2930, 22648), (2980, 22268), (4688, 14155), (5567, 11920), (5662, 11720), (5860, 11324), (5960, 11134)]