8395040

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:825

約数の個数: 48

約数和(自身を含む): 20139840

約数和(自身を除く): 11744800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 739, 1136, 1420, 1478, 2272, 2840, 2956, 3695, 5680, 5912, 7390, 11360, 11824, 14780, 23648, 29560, 52469, 59120, 104938, 118240, 209876, 262345, 419752, 524690, 839504, 1049380, 1679008, 2098760, 4197520, 8395040]

約数ペア:

[(1, 8395040), (2, 4197520), (4, 2098760), (5, 1679008), (8, 1049380), (10, 839504), (16, 524690), (20, 419752), (32, 262345), (40, 209876), (71, 118240), (80, 104938), (142, 59120), (160, 52469), (284, 29560), (355, 23648), (568, 14780), (710, 11824), (739, 11360), (1136, 7390), (1420, 5912), (1478, 5680), (2272, 3695), (2840, 2956)]