20456430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1289}}^1$

素因数の和:1345

約数の個数: 48

約数和(自身を含む): 51362640

約数和(自身を除く): 30906210

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 529, 690, 1058, 1289, 1587, 2578, 2645, 3174, 3867, 5290, 6445, 7734, 7935, 12890, 15870, 19335, 29647, 38670, 59294, 88941, 148235, 177882, 296470, 444705, 681881, 889410, 1363762, 2045643, 3409405, 4091286, 6818810, 10228215, 20456430]

約数ペア:

[(1, 20456430), (2, 10228215), (3, 6818810), (5, 4091286), (6, 3409405), (10, 2045643), (15, 1363762), (23, 889410), (30, 681881), (46, 444705), (69, 296470), (115, 177882), (138, 148235), (230, 88941), (345, 59294), (529, 38670), (690, 29647), (1058, 19335), (1289, 15870), (1587, 12890), (2578, 7935), (2645, 7734), (3174, 6445), (3867, 5290)]