117638420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{66089}}^1$

素因数の和:66187

約数の個数: 24

約数和(自身を含む): 249820200

約数和(自身を除く): 132181780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 66089, 132178, 264356, 330445, 660890, 1321780, 5881921, 11763842, 23527684, 29409605, 58819210, 117638420]

約数ペア:

[(1, 117638420), (2, 58819210), (4, 29409605), (5, 23527684), (10, 11763842), (20, 5881921), (89, 1321780), (178, 660890), (356, 330445), (445, 264356), (890, 132178), (1780, 66089)]