20654460

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1663}}^1$

素因数の和:1704

約数の個数: 96

約数和(自身を含む): 67092480

約数和(自身を除く): 46438020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 90, 92, 108, 115, 135, 138, 180, 207, 230, 270, 276, 345, 414, 460, 540, 621, 690, 828, 1035, 1242, 1380, 1663, 2070, 2484, 3105, 3326, 4140, 4989, 6210, 6652, 8315, 9978, 12420, 14967, 16630, 19956, 24945, 29934, 33260, 38249, 44901, 49890, 59868, 74835, 76498, 89802, 99780, 114747, 149670, 152996, 179604, 191245, 224505, 229494, 299340, 344241, 382490, 449010, 458988, 573735, 688482, 764980, 898020, 1032723, 1147470, 1376964, 1721205, 2065446, 2294940, 3442410, 4130892, 5163615, 6884820, 10327230, 20654460]

約数ペア:

[(1, 20654460), (2, 10327230), (3, 6884820), (4, 5163615), (5, 4130892), (6, 3442410), (9, 2294940), (10, 2065446), (12, 1721205), (15, 1376964), (18, 1147470), (20, 1032723), (23, 898020), (27, 764980), (30, 688482), (36, 573735), (45, 458988), (46, 449010), (54, 382490), (60, 344241), (69, 299340), (90, 229494), (92, 224505), (108, 191245), (115, 179604), (135, 152996), (138, 149670), (180, 114747), (207, 99780), (230, 89802), (270, 76498), (276, 74835), (345, 59868), (414, 49890), (460, 44901), (540, 38249), (621, 33260), (690, 29934), (828, 24945), (1035, 19956), (1242, 16630), (1380, 14967), (1663, 12420), (2070, 9978), (2484, 8315), (3105, 6652), (3326, 6210), (4140, 4989)]