20074888900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{960521}}^1$

素因数の和:960565

約数の個数: 72

約数和(自身を含む): 50023985760

約数和(自身を除く): 29949096860

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 1045, 1100, 1900, 2090, 4180, 5225, 10450, 20900, 960521, 1921042, 3842084, 4802605, 9605210, 10565731, 18249899, 19210420, 21131462, 24013025, 36499798, 42262924, 48026050, 52828655, 72999596, 91249495, 96052100, 105657310, 182498990, 200748889, 211314620, 264143275, 364997980, 401497778, 456247475, 528286550, 802995556, 912494950, 1003744445, 1056573100, 1824989900, 2007488890, 4014977780, 5018722225, 10037444450, 20074888900]

約数ペア:

[(1, 20074888900), (2, 10037444450), (4, 5018722225), (5, 4014977780), (10, 2007488890), (11, 1824989900), (19, 1056573100), (20, 1003744445), (22, 912494950), (25, 802995556), (38, 528286550), (44, 456247475), (50, 401497778), (55, 364997980), (76, 264143275), (95, 211314620), (100, 200748889), (110, 182498990), (190, 105657310), (209, 96052100), (220, 91249495), (275, 72999596), (380, 52828655), (418, 48026050), (475, 42262924), (550, 36499798), (836, 24013025), (950, 21131462), (1045, 19210420), (1100, 18249899), (1900, 10565731), (2090, 9605210), (4180, 4802605), (5225, 3842084), (10450, 1921042), (20900, 960521)]