20390190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1019}}^1$

素因数の和:1081

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 32486610

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 29, 30, 46, 58, 69, 87, 115, 138, 145, 174, 230, 290, 345, 435, 667, 690, 870, 1019, 1334, 2001, 2038, 3057, 3335, 4002, 5095, 6114, 6670, 10005, 10190, 15285, 20010, 23437, 29551, 30570, 46874, 59102, 70311, 88653, 117185, 140622, 147755, 177306, 234370, 295510, 351555, 443265, 679673, 703110, 886530, 1359346, 2039019, 3398365, 4078038, 6796730, 10195095, 20390190]

約数ペア:

[(1, 20390190), (2, 10195095), (3, 6796730), (5, 4078038), (6, 3398365), (10, 2039019), (15, 1359346), (23, 886530), (29, 703110), (30, 679673), (46, 443265), (58, 351555), (69, 295510), (87, 234370), (115, 177306), (138, 147755), (145, 140622), (174, 117185), (230, 88653), (290, 70311), (345, 59102), (435, 46874), (667, 30570), (690, 29551), (870, 23437), (1019, 20010), (1334, 15285), (2001, 10190), (2038, 10005), (3057, 6670), (3335, 6114), (4002, 5095)]