128816765

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 201553920

約数和(自身を除く): 72737155

約数列:

[1, 5, 7, 11, 35, 53, 55, 59, 77, 107, 265, 295, 371, 385, 413, 535, 583, 649, 749, 1177, 1855, 2065, 2915, 3127, 3245, 3745, 4081, 4543, 5671, 5885, 6313, 8239, 15635, 20405, 21889, 22715, 28355, 31565, 34397, 39697, 41195, 44191, 62381, 69443, 109445, 171985, 198485, 220955, 240779, 311905, 334589, 347215, 436667, 486101, 1203895, 1672945, 2183335, 2342123, 2430505, 3680479, 11710615, 18402395, 25763353, 128816765]

約数ペア:

[(1, 128816765), (5, 25763353), (7, 18402395), (11, 11710615), (35, 3680479), (53, 2430505), (55, 2342123), (59, 2183335), (77, 1672945), (107, 1203895), (265, 486101), (295, 436667), (371, 347215), (385, 334589), (413, 311905), (535, 240779), (583, 220955), (649, 198485), (749, 171985), (1177, 109445), (1855, 69443), (2065, 62381), (2915, 44191), (3127, 41195), (3245, 39697), (3745, 34397), (4081, 31565), (4543, 28355), (5671, 22715), (5885, 21889), (6313, 20405), (8239, 15635)]