161806960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2557}}^1$

素因数の和:2690

約数の個数: 80

約数和(自身を含む): 433918656

約数和(自身を除く): 272111696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 113, 140, 226, 280, 452, 560, 565, 791, 904, 1130, 1582, 1808, 2260, 2557, 3164, 3955, 4520, 5114, 6328, 7910, 9040, 10228, 12656, 12785, 15820, 17899, 20456, 25570, 31640, 35798, 40912, 51140, 63280, 71596, 89495, 102280, 143192, 178990, 204560, 286384, 288941, 357980, 577882, 715960, 1155764, 1431920, 1444705, 2022587, 2311528, 2889410, 4045174, 4623056, 5778820, 8090348, 10112935, 11557640, 16180696, 20225870, 23115280, 32361392, 40451740, 80903480, 161806960]

約数ペア:

[(1, 161806960), (2, 80903480), (4, 40451740), (5, 32361392), (7, 23115280), (8, 20225870), (10, 16180696), (14, 11557640), (16, 10112935), (20, 8090348), (28, 5778820), (35, 4623056), (40, 4045174), (56, 2889410), (70, 2311528), (80, 2022587), (112, 1444705), (113, 1431920), (140, 1155764), (226, 715960), (280, 577882), (452, 357980), (560, 288941), (565, 286384), (791, 204560), (904, 178990), (1130, 143192), (1582, 102280), (1808, 89495), (2260, 71596), (2557, 63280), (3164, 51140), (3955, 40912), (4520, 35798), (5114, 31640), (6328, 25570), (7910, 20456), (9040, 17899), (10228, 15820), (12656, 12785)]