19844240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19081}}^1$

素因数の和:19107

約数の個数: 40

約数和(自身を含む): 49689528

約数和(自身を除く): 29845288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19081, 38162, 76324, 95405, 152648, 190810, 248053, 305296, 381620, 496106, 763240, 992212, 1240265, 1526480, 1984424, 2480530, 3968848, 4961060, 9922120, 19844240]

約数ペア:

[(1, 19844240), (2, 9922120), (4, 4961060), (5, 3968848), (8, 2480530), (10, 1984424), (13, 1526480), (16, 1240265), (20, 992212), (26, 763240), (40, 496106), (52, 381620), (65, 305296), (80, 248053), (104, 190810), (130, 152648), (208, 95405), (260, 76324), (520, 38162), (1040, 19081)]