81241760

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17509}}^1$

素因数の和:17553

約数の個数: 48

約数和(自身を含む): 198563400

約数和(自身を除く): 117321640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4640, 17509, 35018, 70036, 87545, 140072, 175090, 280144, 350180, 507761, 560288, 700360, 1015522, 1400720, 2031044, 2538805, 2801440, 4062088, 5077610, 8124176, 10155220, 16248352, 20310440, 40620880, 81241760]

約数ペア:

[(1, 81241760), (2, 40620880), (4, 20310440), (5, 16248352), (8, 10155220), (10, 8124176), (16, 5077610), (20, 4062088), (29, 2801440), (32, 2538805), (40, 2031044), (58, 1400720), (80, 1015522), (116, 700360), (145, 560288), (160, 507761), (232, 350180), (290, 280144), (464, 175090), (580, 140072), (928, 87545), (1160, 70036), (2320, 35018), (4640, 17509)]