18996770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7691}}^1$

素因数の和:7730

約数の個数: 32

約数和(自身を含む): 38767680

約数和(自身を除く): 19770910

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 7691, 15382, 38455, 76910, 99983, 146129, 199966, 292258, 499915, 730645, 999830, 1461290, 1899677, 3799354, 9498385, 18996770]

約数ペア:

[(1, 18996770), (2, 9498385), (5, 3799354), (10, 1899677), (13, 1461290), (19, 999830), (26, 730645), (38, 499915), (65, 292258), (95, 199966), (130, 146129), (190, 99983), (247, 76910), (494, 38455), (1235, 15382), (2470, 7691)]