208790715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{14951}}^1$

素因数の和:14992

約数の個数: 48

約数和(自身を含む): 409086720

約数和(自身を除く): 200296005

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2793, 4655, 13965, 14951, 44853, 74755, 104657, 224265, 284069, 313971, 523285, 732599, 852207, 1420345, 1569855, 1988483, 2197797, 3662995, 4261035, 5965449, 9942415, 10988985, 13919381, 29827245, 41758143, 69596905, 208790715]

約数ペア:

[(1, 208790715), (3, 69596905), (5, 41758143), (7, 29827245), (15, 13919381), (19, 10988985), (21, 9942415), (35, 5965449), (49, 4261035), (57, 3662995), (95, 2197797), (105, 1988483), (133, 1569855), (147, 1420345), (245, 852207), (285, 732599), (399, 523285), (665, 313971), (735, 284069), (931, 224265), (1995, 104657), (2793, 74755), (4655, 44853), (13965, 14951)]