40809020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9403}}^1$

素因数の和:9450

約数の個数: 48

約数和(自身を含む): 101111808

約数和(自身を除く): 60302788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 9403, 18806, 37612, 47015, 65821, 94030, 131642, 188060, 263284, 291493, 329105, 582986, 658210, 1165972, 1316420, 1457465, 2040451, 2914930, 4080902, 5829860, 8161804, 10202255, 20404510, 40809020]

約数ペア:

[(1, 40809020), (2, 20404510), (4, 10202255), (5, 8161804), (7, 5829860), (10, 4080902), (14, 2914930), (20, 2040451), (28, 1457465), (31, 1316420), (35, 1165972), (62, 658210), (70, 582986), (124, 329105), (140, 291493), (155, 263284), (217, 188060), (310, 131642), (434, 94030), (620, 65821), (868, 47015), (1085, 37612), (2170, 18806), (4340, 9403)]