259660555

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:521

約数の個数: 72

約数和(自身を含む): 420290640

約数和(自身を除く): 160630085

約数列:

[1, 5, 7, 11, 19, 35, 49, 55, 77, 95, 121, 133, 209, 245, 385, 461, 539, 605, 665, 847, 931, 1045, 1463, 2299, 2305, 2695, 3227, 4235, 4655, 5071, 5929, 7315, 8759, 10241, 11495, 16093, 16135, 22589, 25355, 29645, 35497, 43795, 51205, 55781, 61313, 80465, 96349, 112651, 112945, 177485, 248479, 278905, 306565, 390467, 429191, 481745, 563255, 674443, 1059839, 1242395, 1952335, 2145955, 2733269, 3372215, 4721101, 5299195, 7418873, 13666345, 23605505, 37094365, 51932111, 259660555]

約数ペア:

[(1, 259660555), (5, 51932111), (7, 37094365), (11, 23605505), (19, 13666345), (35, 7418873), (49, 5299195), (55, 4721101), (77, 3372215), (95, 2733269), (121, 2145955), (133, 1952335), (209, 1242395), (245, 1059839), (385, 674443), (461, 563255), (539, 481745), (605, 429191), (665, 390467), (847, 306565), (931, 278905), (1045, 248479), (1463, 177485), (2299, 112945), (2305, 112651), (2695, 96349), (3227, 80465), (4235, 61313), (4655, 55781), (5071, 51205), (5929, 43795), (7315, 35497), (8759, 29645), (10241, 25355), (11495, 22589), (16093, 16135)]