20173980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4051}}^1$

素因数の和:4146

約数の個数: 48

約数和(自身を含む): 57181824

約数和(自身を除く): 37007844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 83, 166, 249, 332, 415, 498, 830, 996, 1245, 1660, 2490, 4051, 4980, 8102, 12153, 16204, 20255, 24306, 40510, 48612, 60765, 81020, 121530, 243060, 336233, 672466, 1008699, 1344932, 1681165, 2017398, 3362330, 4034796, 5043495, 6724660, 10086990, 20173980]

約数ペア:

[(1, 20173980), (2, 10086990), (3, 6724660), (4, 5043495), (5, 4034796), (6, 3362330), (10, 2017398), (12, 1681165), (15, 1344932), (20, 1008699), (30, 672466), (60, 336233), (83, 243060), (166, 121530), (249, 81020), (332, 60765), (415, 48612), (498, 40510), (830, 24306), (996, 20255), (1245, 16204), (1660, 12153), (2490, 8102), (4051, 4980)]