127900760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245963}}^1$

素因数の和:245987

約数の個数: 32

約数和(自身を含む): 309914640

約数和(自身を除く): 182013880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 245963, 491926, 983852, 1229815, 1967704, 2459630, 3197519, 4919260, 6395038, 9838520, 12790076, 15987595, 25580152, 31975190, 63950380, 127900760]

約数ペア:

[(1, 127900760), (2, 63950380), (4, 31975190), (5, 25580152), (8, 15987595), (10, 12790076), (13, 9838520), (20, 6395038), (26, 4919260), (40, 3197519), (52, 2459630), (65, 1967704), (104, 1229815), (130, 983852), (260, 491926), (520, 245963)]