220198055

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 345489408

約数和(自身を除く): 125291353

約数列:

[1, 5, 7, 11, 35, 43, 47, 55, 77, 215, 235, 283, 301, 329, 385, 473, 517, 1415, 1505, 1645, 1981, 2021, 2365, 2585, 3113, 3311, 3619, 9905, 10105, 12169, 13301, 14147, 15565, 16555, 18095, 21791, 22231, 60845, 66505, 70735, 85183, 93107, 108955, 111155, 133859, 146311, 155617, 425915, 465535, 571943, 669295, 731555, 778085, 937013, 1024177, 2859715, 4003601, 4685065, 5120885, 6291373, 20018005, 31456865, 44039611, 220198055]

約数ペア:

[(1, 220198055), (5, 44039611), (7, 31456865), (11, 20018005), (35, 6291373), (43, 5120885), (47, 4685065), (55, 4003601), (77, 2859715), (215, 1024177), (235, 937013), (283, 778085), (301, 731555), (329, 669295), (385, 571943), (473, 465535), (517, 425915), (1415, 155617), (1505, 146311), (1645, 133859), (1981, 111155), (2021, 108955), (2365, 93107), (2585, 85183), (3113, 70735), (3311, 66505), (3619, 60845), (9905, 22231), (10105, 21791), (12169, 18095), (13301, 16555), (14147, 15565)]