20382140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{751}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 25098820

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 59, 92, 115, 118, 230, 236, 295, 460, 590, 751, 1180, 1357, 1502, 2714, 3004, 3755, 5428, 6785, 7510, 13570, 15020, 17273, 27140, 34546, 44309, 69092, 86365, 88618, 172730, 177236, 221545, 345460, 443090, 886180, 1019107, 2038214, 4076428, 5095535, 10191070, 20382140]

約数ペア:

[(1, 20382140), (2, 10191070), (4, 5095535), (5, 4076428), (10, 2038214), (20, 1019107), (23, 886180), (46, 443090), (59, 345460), (92, 221545), (115, 177236), (118, 172730), (230, 88618), (236, 86365), (295, 69092), (460, 44309), (590, 34546), (751, 27140), (1180, 17273), (1357, 15020), (1502, 13570), (2714, 7510), (3004, 6785), (3755, 5428)]