15421520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4483}}^1$

素因数の和:4539

約数の個数: 40

約数和(自身を含む): 36697056

約数和(自身を除く): 21275536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4483, 8966, 17932, 22415, 35864, 44830, 71728, 89660, 179320, 192769, 358640, 385538, 771076, 963845, 1542152, 1927690, 3084304, 3855380, 7710760, 15421520]

約数ペア:

[(1, 15421520), (2, 7710760), (4, 3855380), (5, 3084304), (8, 1927690), (10, 1542152), (16, 963845), (20, 771076), (40, 385538), (43, 358640), (80, 192769), (86, 179320), (172, 89660), (215, 71728), (344, 44830), (430, 35864), (688, 22415), (860, 17932), (1720, 8966), (3440, 4483)]