25171980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1493}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 70779744

約数和(自身を除く): 45607764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 1124, 1405, 1493, 1686, 2810, 2986, 3372, 4215, 4479, 5620, 5972, 7465, 8430, 8958, 14930, 16860, 17916, 22395, 29860, 44790, 89580, 419533, 839066, 1258599, 1678132, 2097665, 2517198, 4195330, 5034396, 6292995, 8390660, 12585990, 25171980]

約数ペア:

[(1, 25171980), (2, 12585990), (3, 8390660), (4, 6292995), (5, 5034396), (6, 4195330), (10, 2517198), (12, 2097665), (15, 1678132), (20, 1258599), (30, 839066), (60, 419533), (281, 89580), (562, 44790), (843, 29860), (1124, 22395), (1405, 17916), (1493, 16860), (1686, 14930), (2810, 8958), (2986, 8430), (3372, 7465), (4215, 5972), (4479, 5620)]