78347980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 168727104

約数和(自身を除く): 90379124

約数列:

[1, 2, 4, 5, 10, 20, 73, 103, 146, 206, 292, 365, 412, 515, 521, 730, 1030, 1042, 1460, 2060, 2084, 2605, 5210, 7519, 10420, 15038, 30076, 37595, 38033, 53663, 75190, 76066, 107326, 150380, 152132, 190165, 214652, 268315, 380330, 536630, 760660, 1073260, 3917399, 7834798, 15669596, 19586995, 39173990, 78347980]

約数ペア:

[(1, 78347980), (2, 39173990), (4, 19586995), (5, 15669596), (10, 7834798), (20, 3917399), (73, 1073260), (103, 760660), (146, 536630), (206, 380330), (292, 268315), (365, 214652), (412, 190165), (515, 152132), (521, 150380), (730, 107326), (1030, 76066), (1042, 75190), (1460, 53663), (2060, 38033), (2084, 37595), (2605, 30076), (5210, 15038), (7519, 10420)]