12787180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{613}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 30945600

約数和(自身を除く): 18158420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 613, 745, 1043, 1226, 1490, 2086, 2452, 2980, 3065, 4172, 4291, 5215, 6130, 8582, 10430, 12260, 17164, 20860, 21455, 42910, 85820, 91337, 182674, 365348, 456685, 639359, 913370, 1278718, 1826740, 2557436, 3196795, 6393590, 12787180]

約数ペア:

[(1, 12787180), (2, 6393590), (4, 3196795), (5, 2557436), (7, 1826740), (10, 1278718), (14, 913370), (20, 639359), (28, 456685), (35, 365348), (70, 182674), (140, 91337), (149, 85820), (298, 42910), (596, 21455), (613, 20860), (745, 17164), (1043, 12260), (1226, 10430), (1490, 8582), (2086, 6130), (2452, 5215), (2980, 4291), (3065, 4172)]