20521470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4357}}^1$

素因数の和:4524

約数の個数: 32

約数和(自身を含む): 49576608

約数和(自身を除く): 29055138

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 157, 314, 471, 785, 942, 1570, 2355, 4357, 4710, 8714, 13071, 21785, 26142, 43570, 65355, 130710, 684049, 1368098, 2052147, 3420245, 4104294, 6840490, 10260735, 20521470]

約数ペア:

[(1, 20521470), (2, 10260735), (3, 6840490), (5, 4104294), (6, 3420245), (10, 2052147), (15, 1368098), (30, 684049), (157, 130710), (314, 65355), (471, 43570), (785, 26142), (942, 21785), (1570, 13071), (2355, 8714), (4357, 4710)]