320953760

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19861}}^1$

素因数の和:19977

約数の個数: 48

約数和(自身を含む): 765799272

約数和(自身を除く): 444845512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 8080, 16160, 19861, 39722, 79444, 99305, 158888, 198610, 317776, 397220, 635552, 794440, 1588880, 2005961, 3177760, 4011922, 8023844, 10029805, 16047688, 20059610, 32095376, 40119220, 64190752, 80238440, 160476880, 320953760]

約数ペア:

[(1, 320953760), (2, 160476880), (4, 80238440), (5, 64190752), (8, 40119220), (10, 32095376), (16, 20059610), (20, 16047688), (32, 10029805), (40, 8023844), (80, 4011922), (101, 3177760), (160, 2005961), (202, 1588880), (404, 794440), (505, 635552), (808, 397220), (1010, 317776), (1616, 198610), (2020, 158888), (3232, 99305), (4040, 79444), (8080, 39722), (16160, 19861)]