8513140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 19293120

約数和(自身を除く): 10779980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 521, 817, 860, 1042, 1634, 2084, 2605, 3268, 4085, 5210, 8170, 9899, 10420, 16340, 19798, 22403, 39596, 44806, 49495, 89612, 98990, 112015, 197980, 224030, 425657, 448060, 851314, 1702628, 2128285, 4256570, 8513140]

約数ペア:

[(1, 8513140), (2, 4256570), (4, 2128285), (5, 1702628), (10, 851314), (19, 448060), (20, 425657), (38, 224030), (43, 197980), (76, 112015), (86, 98990), (95, 89612), (172, 49495), (190, 44806), (215, 39596), (380, 22403), (430, 19798), (521, 16340), (817, 10420), (860, 9899), (1042, 8170), (1634, 5210), (2084, 4085), (2605, 3268)]