17540420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1489}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 40051200

約数和(自身を除く): 22510780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1489, 2356, 2945, 2978, 5890, 5956, 7445, 11780, 14890, 28291, 29780, 46159, 56582, 92318, 113164, 141455, 184636, 230795, 282910, 461590, 565820, 877021, 923180, 1754042, 3508084, 4385105, 8770210, 17540420]

約数ペア:

[(1, 17540420), (2, 8770210), (4, 4385105), (5, 3508084), (10, 1754042), (19, 923180), (20, 877021), (31, 565820), (38, 461590), (62, 282910), (76, 230795), (95, 184636), (124, 141455), (155, 113164), (190, 92318), (310, 56582), (380, 46159), (589, 29780), (620, 28291), (1178, 14890), (1489, 11780), (2356, 7445), (2945, 5956), (2978, 5890)]