18904260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{619}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 53121600

約数和(自身を除く): 34217340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 619, 1018, 1238, 1527, 1857, 2036, 2476, 2545, 3054, 3095, 3714, 5090, 6108, 6190, 7428, 7635, 9285, 10180, 12380, 15270, 18570, 30540, 37140, 315071, 630142, 945213, 1260284, 1575355, 1890426, 3150710, 3780852, 4726065, 6301420, 9452130, 18904260]

約数ペア:

[(1, 18904260), (2, 9452130), (3, 6301420), (4, 4726065), (5, 3780852), (6, 3150710), (10, 1890426), (12, 1575355), (15, 1260284), (20, 945213), (30, 630142), (60, 315071), (509, 37140), (619, 30540), (1018, 18570), (1238, 15270), (1527, 12380), (1857, 10180), (2036, 9285), (2476, 7635), (2545, 7428), (3054, 6190), (3095, 6108), (3714, 5090)]