396848360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{320039}}^1$

素因数の和:320081

約数の個数: 32

約数和(自身を含む): 921715200

約数和(自身を除く): 524866840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 320039, 640078, 1280156, 1600195, 2560312, 3200390, 6400780, 9921209, 12801560, 19842418, 39684836, 49606045, 79369672, 99212090, 198424180, 396848360]

約数ペア:

[(1, 396848360), (2, 198424180), (4, 99212090), (5, 79369672), (8, 49606045), (10, 39684836), (20, 19842418), (31, 12801560), (40, 9921209), (62, 6400780), (124, 3200390), (155, 2560312), (248, 1600195), (310, 1280156), (620, 640078), (1240, 320039)]