20200920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2371}}^1$

素因数の和:2456

約数の個数: 64

約数和(自身を含む): 61482240

約数和(自身を除く): 41281320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2371, 2840, 4260, 4742, 7113, 8520, 9484, 11855, 14226, 18968, 23710, 28452, 35565, 47420, 56904, 71130, 94840, 142260, 168341, 284520, 336682, 505023, 673364, 841705, 1010046, 1346728, 1683410, 2020092, 2525115, 3366820, 4040184, 5050230, 6733640, 10100460, 20200920]

約数ペア:

[(1, 20200920), (2, 10100460), (3, 6733640), (4, 5050230), (5, 4040184), (6, 3366820), (8, 2525115), (10, 2020092), (12, 1683410), (15, 1346728), (20, 1010046), (24, 841705), (30, 673364), (40, 505023), (60, 336682), (71, 284520), (120, 168341), (142, 142260), (213, 94840), (284, 71130), (355, 56904), (426, 47420), (568, 35565), (710, 28452), (852, 23710), (1065, 18968), (1420, 14226), (1704, 11855), (2130, 9484), (2371, 8520), (2840, 7113), (4260, 4742)]