16666840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13441}}^1$

素因数の和:13483

約数の個数: 32

約数和(自身を含む): 38712960

約数和(自身を除く): 22046120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13441, 26882, 53764, 67205, 107528, 134410, 268820, 416671, 537640, 833342, 1666684, 2083355, 3333368, 4166710, 8333420, 16666840]

約数ペア:

[(1, 16666840), (2, 8333420), (4, 4166710), (5, 3333368), (8, 2083355), (10, 1666684), (20, 833342), (31, 537640), (40, 416671), (62, 268820), (124, 134410), (155, 107528), (248, 67205), (310, 53764), (620, 26882), (1240, 13441)]