68840905

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 106375680

約数和(自身を除く): 37534775

約数列:

[1, 5, 7, 17, 35, 37, 53, 59, 85, 119, 185, 259, 265, 295, 371, 413, 595, 629, 901, 1003, 1295, 1855, 1961, 2065, 2183, 3127, 3145, 4403, 4505, 5015, 6307, 7021, 9805, 10915, 13727, 15281, 15635, 21889, 22015, 31535, 33337, 35105, 37111, 53159, 68635, 76405, 109445, 115699, 166685, 185555, 233359, 259777, 265795, 372113, 578495, 809893, 1166795, 1298885, 1860565, 1966883, 4049465, 9834415, 13768181, 68840905]

約数ペア:

[(1, 68840905), (5, 13768181), (7, 9834415), (17, 4049465), (35, 1966883), (37, 1860565), (53, 1298885), (59, 1166795), (85, 809893), (119, 578495), (185, 372113), (259, 265795), (265, 259777), (295, 233359), (371, 185555), (413, 166685), (595, 115699), (629, 109445), (901, 76405), (1003, 68635), (1295, 53159), (1855, 37111), (1961, 35105), (2065, 33337), (2183, 31535), (3127, 22015), (3145, 21889), (4403, 15635), (4505, 15281), (5015, 13727), (6307, 10915), (7021, 9805)]