81807550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 179988480

約数和(自身を除く): 98180930

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 29, 46, 50, 55, 58, 110, 115, 145, 223, 230, 253, 275, 290, 319, 446, 506, 550, 575, 638, 667, 725, 1115, 1150, 1265, 1334, 1450, 1595, 2230, 2453, 2530, 3190, 3335, 4906, 5129, 5575, 6325, 6467, 6670, 7337, 7975, 10258, 11150, 12265, 12650, 12934, 14674, 15950, 16675, 24530, 25645, 32335, 33350, 36685, 51290, 56419, 61325, 64670, 71137, 73370, 112838, 122650, 128225, 142274, 148741, 161675, 183425, 256450, 282095, 297482, 323350, 355685, 366850, 564190, 711370, 743705, 1410475, 1487410, 1636151, 1778425, 2820950, 3272302, 3556850, 3718525, 7437050, 8180755, 16361510, 40903775, 81807550]

約数ペア:

[(1, 81807550), (2, 40903775), (5, 16361510), (10, 8180755), (11, 7437050), (22, 3718525), (23, 3556850), (25, 3272302), (29, 2820950), (46, 1778425), (50, 1636151), (55, 1487410), (58, 1410475), (110, 743705), (115, 711370), (145, 564190), (223, 366850), (230, 355685), (253, 323350), (275, 297482), (290, 282095), (319, 256450), (446, 183425), (506, 161675), (550, 148741), (575, 142274), (638, 128225), (667, 122650), (725, 112838), (1115, 73370), (1150, 71137), (1265, 64670), (1334, 61325), (1450, 56419), (1595, 51290), (2230, 36685), (2453, 33350), (2530, 32335), (3190, 25645), (3335, 24530), (4906, 16675), (5129, 15950), (5575, 14674), (6325, 12934), (6467, 12650), (6670, 12265), (7337, 11150), (7975, 10258)]