20143866620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{276019}}^1$

素因数の和:276158

約数の個数: 48

約数和(自身を含む): 43820935200

約数和(自身を除く): 23677068580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1780, 3649, 7298, 14596, 18245, 36490, 72980, 276019, 552038, 1104076, 1380095, 2760190, 5520380, 11316779, 22633558, 24565691, 45267116, 49131382, 56583895, 98262764, 113167790, 122828455, 226335580, 245656910, 491313820, 1007193331, 2014386662, 4028773324, 5035966655, 10071933310, 20143866620]

約数ペア:

[(1, 20143866620), (2, 10071933310), (4, 5035966655), (5, 4028773324), (10, 2014386662), (20, 1007193331), (41, 491313820), (82, 245656910), (89, 226335580), (164, 122828455), (178, 113167790), (205, 98262764), (356, 56583895), (410, 49131382), (445, 45267116), (820, 24565691), (890, 22633558), (1780, 11316779), (3649, 5520380), (7298, 2760190), (14596, 1380095), (18245, 1104076), (36490, 552038), (72980, 276019)]