18991320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{158261}}^1$

素因数の和:158275

約数の個数: 32

約数和(自身を含む): 56974320

約数和(自身を除く): 37983000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 158261, 316522, 474783, 633044, 791305, 949566, 1266088, 1582610, 1899132, 2373915, 3165220, 3798264, 4747830, 6330440, 9495660, 18991320]

約数ペア:

[(1, 18991320), (2, 9495660), (3, 6330440), (4, 4747830), (5, 3798264), (6, 3165220), (8, 2373915), (10, 1899132), (12, 1582610), (15, 1266088), (20, 949566), (24, 791305), (30, 633044), (40, 474783), (60, 316522), (120, 158261)]