71357840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:840

約数の個数: 80

約数和(自身を含む): 178381440

約数和(自身を除く): 107023600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 272, 284, 340, 355, 568, 680, 710, 739, 1136, 1207, 1360, 1420, 1478, 2414, 2840, 2956, 3695, 4828, 5680, 5912, 6035, 7390, 9656, 11824, 12070, 12563, 14780, 19312, 24140, 25126, 29560, 48280, 50252, 52469, 59120, 62815, 96560, 100504, 104938, 125630, 201008, 209876, 251260, 262345, 419752, 502520, 524690, 839504, 891973, 1005040, 1049380, 1783946, 2098760, 3567892, 4197520, 4459865, 7135784, 8919730, 14271568, 17839460, 35678920, 71357840]

約数ペア:

[(1, 71357840), (2, 35678920), (4, 17839460), (5, 14271568), (8, 8919730), (10, 7135784), (16, 4459865), (17, 4197520), (20, 3567892), (34, 2098760), (40, 1783946), (68, 1049380), (71, 1005040), (80, 891973), (85, 839504), (136, 524690), (142, 502520), (170, 419752), (272, 262345), (284, 251260), (340, 209876), (355, 201008), (568, 125630), (680, 104938), (710, 100504), (739, 96560), (1136, 62815), (1207, 59120), (1360, 52469), (1420, 50252), (1478, 48280), (2414, 29560), (2840, 25126), (2956, 24140), (3695, 19312), (4828, 14780), (5680, 12563), (5912, 12070), (6035, 11824), (7390, 9656)]