78857900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4217}}^1$

素因数の和:4259

約数の個数: 72

約数和(自身を含む): 197706096

約数和(自身を除く): 118848196

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 1100, 1700, 1870, 3740, 4217, 4675, 8434, 9350, 16868, 18700, 21085, 42170, 46387, 71689, 84340, 92774, 105425, 143378, 185548, 210850, 231935, 286756, 358445, 421700, 463870, 716890, 788579, 927740, 1159675, 1433780, 1577158, 1792225, 2319350, 3154316, 3584450, 3942895, 4638700, 7168900, 7885790, 15771580, 19714475, 39428950, 78857900]

約数ペア:

[(1, 78857900), (2, 39428950), (4, 19714475), (5, 15771580), (10, 7885790), (11, 7168900), (17, 4638700), (20, 3942895), (22, 3584450), (25, 3154316), (34, 2319350), (44, 1792225), (50, 1577158), (55, 1433780), (68, 1159675), (85, 927740), (100, 788579), (110, 716890), (170, 463870), (187, 421700), (220, 358445), (275, 286756), (340, 231935), (374, 210850), (425, 185548), (550, 143378), (748, 105425), (850, 92774), (935, 84340), (1100, 71689), (1700, 46387), (1870, 42170), (3740, 21085), (4217, 18700), (4675, 16868), (8434, 9350)]