1987960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3823}}^1$

素因数の和:3847

約数の個数: 32

約数和(自身を含む): 4818240

約数和(自身を除く): 2830280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3823, 7646, 15292, 19115, 30584, 38230, 49699, 76460, 99398, 152920, 198796, 248495, 397592, 496990, 993980, 1987960]

約数ペア:

[(1, 1987960), (2, 993980), (4, 496990), (5, 397592), (8, 248495), (10, 198796), (13, 152920), (20, 99398), (26, 76460), (40, 49699), (52, 38230), (65, 30584), (104, 19115), (130, 15292), (260, 7646), (520, 3823)]