80493920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38699}}^1$

素因数の和:38727

約数の個数: 48

約数和(自身を含む): 204800400

約数和(自身を除く): 124306480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 38699, 77398, 154796, 193495, 309592, 386990, 503087, 619184, 773980, 1006174, 1238368, 1547960, 2012348, 2515435, 3095920, 4024696, 5030870, 6191840, 8049392, 10061740, 16098784, 20123480, 40246960, 80493920]

約数ペア:

[(1, 80493920), (2, 40246960), (4, 20123480), (5, 16098784), (8, 10061740), (10, 8049392), (13, 6191840), (16, 5030870), (20, 4024696), (26, 3095920), (32, 2515435), (40, 2012348), (52, 1547960), (65, 1238368), (80, 1006174), (104, 773980), (130, 619184), (160, 503087), (208, 386990), (260, 309592), (416, 193495), (520, 154796), (1040, 77398), (2080, 38699)]