208234130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{317}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 420553728

約数和(自身を除く): 212319598

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 163, 310, 317, 326, 403, 634, 806, 815, 1585, 1630, 2015, 2119, 3170, 4030, 4121, 4238, 5053, 8242, 9827, 10106, 10595, 19654, 20605, 21190, 25265, 41210, 49135, 50530, 51671, 65689, 98270, 103342, 127751, 131378, 255502, 258355, 328445, 516710, 638755, 656890, 671723, 1277510, 1343446, 1601801, 3203602, 3358615, 6717230, 8009005, 16018010, 20823413, 41646826, 104117065, 208234130]

約数ペア:

[(1, 208234130), (2, 104117065), (5, 41646826), (10, 20823413), (13, 16018010), (26, 8009005), (31, 6717230), (62, 3358615), (65, 3203602), (130, 1601801), (155, 1343446), (163, 1277510), (310, 671723), (317, 656890), (326, 638755), (403, 516710), (634, 328445), (806, 258355), (815, 255502), (1585, 131378), (1630, 127751), (2015, 103342), (2119, 98270), (3170, 65689), (4030, 51671), (4121, 50530), (4238, 49135), (5053, 41210), (8242, 25265), (9827, 21190), (10106, 20605), (10595, 19654)]