18978090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3881}}^1$

素因数の和:4054

約数の個数: 32

約数和(自身を含む): 45838656

約数和(自身を除く): 26860566

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 163, 326, 489, 815, 978, 1630, 2445, 3881, 4890, 7762, 11643, 19405, 23286, 38810, 58215, 116430, 632603, 1265206, 1897809, 3163015, 3795618, 6326030, 9489045, 18978090]

約数ペア:

[(1, 18978090), (2, 9489045), (3, 6326030), (5, 3795618), (6, 3163015), (10, 1897809), (15, 1265206), (30, 632603), (163, 116430), (326, 58215), (489, 38810), (815, 23286), (978, 19405), (1630, 11643), (2445, 7762), (3881, 4890)]