19112120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15413}}^1$

素因数の和:15455

約数の個数: 32

約数和(自身を含む): 44392320

約数和(自身を除く): 25280200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15413, 30826, 61652, 77065, 123304, 154130, 308260, 477803, 616520, 955606, 1911212, 2389015, 3822424, 4778030, 9556060, 19112120]

約数ペア:

[(1, 19112120), (2, 9556060), (4, 4778030), (5, 3822424), (8, 2389015), (10, 1911212), (20, 955606), (31, 616520), (40, 477803), (62, 308260), (124, 154130), (155, 123304), (248, 77065), (310, 61652), (620, 30826), (1240, 15413)]