81436920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678641}}^1$

素因数の和:678655

約数の個数: 32

約数和(自身を含む): 244311120

約数和(自身を除く): 162874200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678641, 1357282, 2035923, 2714564, 3393205, 4071846, 5429128, 6786410, 8143692, 10179615, 13572820, 16287384, 20359230, 27145640, 40718460, 81436920]

約数ペア:

[(1, 81436920), (2, 40718460), (3, 27145640), (4, 20359230), (5, 16287384), (6, 13572820), (8, 10179615), (10, 8143692), (12, 6786410), (15, 5429128), (20, 4071846), (24, 3393205), (30, 2714564), (40, 2035923), (60, 1357282), (120, 678641)]