1899560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{281}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 4644540

約数和(自身を除く): 2744980

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 281, 338, 520, 562, 676, 845, 1124, 1352, 1405, 1690, 2248, 2810, 3380, 3653, 5620, 6760, 7306, 11240, 14612, 18265, 29224, 36530, 47489, 73060, 94978, 146120, 189956, 237445, 379912, 474890, 949780, 1899560]

約数ペア:

[(1, 1899560), (2, 949780), (4, 474890), (5, 379912), (8, 237445), (10, 189956), (13, 146120), (20, 94978), (26, 73060), (40, 47489), (52, 36530), (65, 29224), (104, 18265), (130, 14612), (169, 11240), (260, 7306), (281, 6760), (338, 5620), (520, 3653), (562, 3380), (676, 2810), (845, 2248), (1124, 1690), (1352, 1405)]