15813825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 28212480

約数和(自身を除く): 12398655

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 79, 85, 157, 237, 255, 395, 425, 471, 785, 1185, 1275, 1343, 1975, 2355, 2669, 3925, 4029, 5925, 6715, 8007, 11775, 12403, 13345, 20145, 33575, 37209, 40035, 62015, 66725, 100725, 186045, 200175, 210851, 310075, 632553, 930225, 1054255, 3162765, 5271275, 15813825]

約数ペア:

[(1, 15813825), (3, 5271275), (5, 3162765), (15, 1054255), (17, 930225), (25, 632553), (51, 310075), (75, 210851), (79, 200175), (85, 186045), (157, 100725), (237, 66725), (255, 62015), (395, 40035), (425, 37209), (471, 33575), (785, 20145), (1185, 13345), (1275, 12403), (1343, 11775), (1975, 8007), (2355, 6715), (2669, 5925), (3925, 4029)]