1657140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 4717440

約数和(自身を除く): 3060300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 389, 426, 710, 778, 852, 1065, 1167, 1420, 1556, 1945, 2130, 2334, 3890, 4260, 4668, 5835, 7780, 11670, 23340, 27619, 55238, 82857, 110476, 138095, 165714, 276190, 331428, 414285, 552380, 828570, 1657140]

約数ペア:

[(1, 1657140), (2, 828570), (3, 552380), (4, 414285), (5, 331428), (6, 276190), (10, 165714), (12, 138095), (15, 110476), (20, 82857), (30, 55238), (60, 27619), (71, 23340), (142, 11670), (213, 7780), (284, 5835), (355, 4668), (389, 4260), (426, 3890), (710, 2334), (778, 2130), (852, 1945), (1065, 1556), (1167, 1420)]