78813020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1621}}^1$

素因数の和:1671

約数の個数: 96

約数和(自身を含む): 206006976

約数和(自身を除く): 127193956

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 130, 143, 170, 187, 220, 221, 260, 286, 340, 374, 442, 572, 715, 748, 884, 935, 1105, 1430, 1621, 1870, 2210, 2431, 2860, 3242, 3740, 4420, 4862, 6484, 8105, 9724, 12155, 16210, 17831, 21073, 24310, 27557, 32420, 35662, 42146, 48620, 55114, 71324, 84292, 89155, 105365, 110228, 137785, 178310, 210730, 231803, 275570, 303127, 356620, 358241, 421460, 463606, 551140, 606254, 716482, 927212, 1159015, 1212508, 1432964, 1515635, 1791205, 2318030, 3031270, 3582410, 3940651, 4636060, 6062540, 7164820, 7881302, 15762604, 19703255, 39406510, 78813020]

約数ペア:

[(1, 78813020), (2, 39406510), (4, 19703255), (5, 15762604), (10, 7881302), (11, 7164820), (13, 6062540), (17, 4636060), (20, 3940651), (22, 3582410), (26, 3031270), (34, 2318030), (44, 1791205), (52, 1515635), (55, 1432964), (65, 1212508), (68, 1159015), (85, 927212), (110, 716482), (130, 606254), (143, 551140), (170, 463606), (187, 421460), (220, 358241), (221, 356620), (260, 303127), (286, 275570), (340, 231803), (374, 210730), (442, 178310), (572, 137785), (715, 110228), (748, 105365), (884, 89155), (935, 84292), (1105, 71324), (1430, 55114), (1621, 48620), (1870, 42146), (2210, 35662), (2431, 32420), (2860, 27557), (3242, 24310), (3740, 21073), (4420, 17831), (4862, 16210), (6484, 12155), (8105, 9724)]