15555820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4831}}^1$

素因数の和:4870

約数の個数: 48

約数和(自身を含む): 38965248

約数和(自身を除く): 23409428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 4831, 9662, 19324, 24155, 33817, 48310, 67634, 96620, 111113, 135268, 169085, 222226, 338170, 444452, 555565, 676340, 777791, 1111130, 1555582, 2222260, 3111164, 3888955, 7777910, 15555820]

約数ペア:

[(1, 15555820), (2, 7777910), (4, 3888955), (5, 3111164), (7, 2222260), (10, 1555582), (14, 1111130), (20, 777791), (23, 676340), (28, 555565), (35, 444452), (46, 338170), (70, 222226), (92, 169085), (115, 135268), (140, 111113), (161, 96620), (230, 67634), (322, 48310), (460, 33817), (644, 24155), (805, 19324), (1610, 9662), (3220, 4831)]