78166520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{36871}}^1$

素因数の和:36935

約数の個数: 32

約数和(自身を含む): 179197920

約数和(自身を除く): 101031400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 36871, 73742, 147484, 184355, 294968, 368710, 737420, 1474840, 1954163, 3908326, 7816652, 9770815, 15633304, 19541630, 39083260, 78166520]

約数ペア:

[(1, 78166520), (2, 39083260), (4, 19541630), (5, 15633304), (8, 9770815), (10, 7816652), (20, 3908326), (40, 1954163), (53, 1474840), (106, 737420), (212, 368710), (265, 294968), (424, 184355), (530, 147484), (1060, 73742), (2120, 36871)]