1916240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1409}}^1$

素因数の和:1439

約数の個数: 40

約数和(自身を含む): 4720680

約数和(自身を除く): 2804440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1409, 2818, 5636, 7045, 11272, 14090, 22544, 23953, 28180, 47906, 56360, 95812, 112720, 119765, 191624, 239530, 383248, 479060, 958120, 1916240]

約数ペア:

[(1, 1916240), (2, 958120), (4, 479060), (5, 383248), (8, 239530), (10, 191624), (16, 119765), (17, 112720), (20, 95812), (34, 56360), (40, 47906), (68, 28180), (80, 23953), (85, 22544), (136, 14090), (170, 11272), (272, 7045), (340, 5636), (680, 2818), (1360, 1409)]