18216730

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 21181670

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 49, 70, 94, 98, 113, 226, 235, 245, 329, 343, 470, 490, 565, 658, 686, 791, 1130, 1582, 1645, 1715, 2303, 3290, 3430, 3955, 4606, 5311, 5537, 7910, 10622, 11074, 11515, 16121, 23030, 26555, 27685, 32242, 37177, 38759, 53110, 55370, 74354, 77518, 80605, 161210, 185885, 193795, 260239, 371770, 387590, 520478, 1301195, 1821673, 2602390, 3643346, 9108365, 18216730]

約数ペア:

[(1, 18216730), (2, 9108365), (5, 3643346), (7, 2602390), (10, 1821673), (14, 1301195), (35, 520478), (47, 387590), (49, 371770), (70, 260239), (94, 193795), (98, 185885), (113, 161210), (226, 80605), (235, 77518), (245, 74354), (329, 55370), (343, 53110), (470, 38759), (490, 37177), (565, 32242), (658, 27685), (686, 26555), (791, 23030), (1130, 16121), (1582, 11515), (1645, 11074), (1715, 10622), (2303, 7910), (3290, 5537), (3430, 5311), (3955, 4606)]