1981830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2131}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 4912128

約数和(自身を除く): 2930298

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 2131, 4262, 6393, 10655, 12786, 21310, 31965, 63930, 66061, 132122, 198183, 330305, 396366, 660610, 990915, 1981830]

約数ペア:

[(1, 1981830), (2, 990915), (3, 660610), (5, 396366), (6, 330305), (10, 198183), (15, 132122), (30, 66061), (31, 63930), (62, 31965), (93, 21310), (155, 12786), (186, 10655), (310, 6393), (465, 4262), (930, 2131)]