28135510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 59875200

約数和(自身を除く): 31739690

約数列:

[1, 2, 5, 10, 13, 17, 26, 29, 34, 58, 65, 85, 130, 145, 170, 221, 290, 377, 439, 442, 493, 754, 878, 986, 1105, 1885, 2195, 2210, 2465, 3770, 4390, 4930, 5707, 6409, 7463, 11414, 12731, 12818, 14926, 25462, 28535, 32045, 37315, 57070, 63655, 64090, 74630, 97019, 127310, 165503, 194038, 216427, 331006, 432854, 485095, 827515, 970190, 1082135, 1655030, 2164270, 2813551, 5627102, 14067755, 28135510]

約数ペア:

[(1, 28135510), (2, 14067755), (5, 5627102), (10, 2813551), (13, 2164270), (17, 1655030), (26, 1082135), (29, 970190), (34, 827515), (58, 485095), (65, 432854), (85, 331006), (130, 216427), (145, 194038), (170, 165503), (221, 127310), (290, 97019), (377, 74630), (439, 64090), (442, 63655), (493, 57070), (754, 37315), (878, 32045), (986, 28535), (1105, 25462), (1885, 14926), (2195, 12818), (2210, 12731), (2465, 11414), (3770, 7463), (4390, 6409), (4930, 5707)]