28757540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 75043584

約数和(自身を除く): 46286044

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 43, 68, 70, 85, 86, 119, 140, 170, 172, 215, 238, 281, 301, 340, 430, 476, 562, 595, 602, 731, 860, 1124, 1190, 1204, 1405, 1462, 1505, 1967, 2380, 2810, 2924, 3010, 3655, 3934, 4777, 5117, 5620, 6020, 7310, 7868, 9554, 9835, 10234, 12083, 14620, 19108, 19670, 20468, 23885, 24166, 25585, 33439, 39340, 47770, 48332, 51170, 60415, 66878, 84581, 95540, 102340, 120830, 133756, 167195, 169162, 205411, 241660, 334390, 338324, 410822, 422905, 668780, 821644, 845810, 1027055, 1437877, 1691620, 2054110, 2875754, 4108220, 5751508, 7189385, 14378770, 28757540]

約数ペア:

[(1, 28757540), (2, 14378770), (4, 7189385), (5, 5751508), (7, 4108220), (10, 2875754), (14, 2054110), (17, 1691620), (20, 1437877), (28, 1027055), (34, 845810), (35, 821644), (43, 668780), (68, 422905), (70, 410822), (85, 338324), (86, 334390), (119, 241660), (140, 205411), (170, 169162), (172, 167195), (215, 133756), (238, 120830), (281, 102340), (301, 95540), (340, 84581), (430, 66878), (476, 60415), (562, 51170), (595, 48332), (602, 47770), (731, 39340), (860, 33439), (1124, 25585), (1190, 24166), (1204, 23885), (1405, 20468), (1462, 19670), (1505, 19108), (1967, 14620), (2380, 12083), (2810, 10234), (2924, 9835), (3010, 9554), (3655, 7868), (3934, 7310), (4777, 6020), (5117, 5620)]