30434740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1459}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 73584000

約数和(自身を除く): 43149260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1459, 1490, 2086, 2918, 2980, 4172, 5215, 5836, 7295, 10213, 10430, 14590, 20426, 20860, 29180, 40852, 51065, 102130, 204260, 217391, 434782, 869564, 1086955, 1521737, 2173910, 3043474, 4347820, 6086948, 7608685, 15217370, 30434740]

約数ペア:

[(1, 30434740), (2, 15217370), (4, 7608685), (5, 6086948), (7, 4347820), (10, 3043474), (14, 2173910), (20, 1521737), (28, 1086955), (35, 869564), (70, 434782), (140, 217391), (149, 204260), (298, 102130), (596, 51065), (745, 40852), (1043, 29180), (1459, 20860), (1490, 20426), (2086, 14590), (2918, 10430), (2980, 10213), (4172, 7295), (5215, 5836)]