61821860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{521}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 138121200

約数和(自身を除く): 76299340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 349, 521, 698, 1042, 1396, 1745, 2084, 2605, 3490, 5210, 5933, 6980, 8857, 10420, 11866, 17714, 23732, 29665, 35428, 44285, 59330, 88570, 118660, 177140, 181829, 363658, 727316, 909145, 1818290, 3091093, 3636580, 6182186, 12364372, 15455465, 30910930, 61821860]

約数ペア:

[(1, 61821860), (2, 30910930), (4, 15455465), (5, 12364372), (10, 6182186), (17, 3636580), (20, 3091093), (34, 1818290), (68, 909145), (85, 727316), (170, 363658), (340, 181829), (349, 177140), (521, 118660), (698, 88570), (1042, 59330), (1396, 44285), (1745, 35428), (2084, 29665), (2605, 23732), (3490, 17714), (5210, 11866), (5933, 10420), (6980, 8857)]