20985855120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29147021}}^1$

素因数の和:29147040

約数の個数: 60

約数和(自身を含む): 70477499196

約数和(自身を除く): 49491644076

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29147021, 58294042, 87441063, 116588084, 145735105, 174882126, 233176168, 262323189, 291470210, 349764252, 437205315, 466352336, 524646378, 582940420, 699528504, 874410630, 1049292756, 1165880840, 1311615945, 1399057008, 1748821260, 2098585512, 2331761680, 2623231890, 3497642520, 4197171024, 5246463780, 6995285040, 10492927560, 20985855120]

約数ペア:

[(1, 20985855120), (2, 10492927560), (3, 6995285040), (4, 5246463780), (5, 4197171024), (6, 3497642520), (8, 2623231890), (9, 2331761680), (10, 2098585512), (12, 1748821260), (15, 1399057008), (16, 1311615945), (18, 1165880840), (20, 1049292756), (24, 874410630), (30, 699528504), (36, 582940420), (40, 524646378), (45, 466352336), (48, 437205315), (60, 349764252), (72, 291470210), (80, 262323189), (90, 233176168), (120, 174882126), (144, 145735105), (180, 116588084), (240, 87441063), (360, 58294042), (720, 29147021)]