131920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:127

約数の個数: 40

約数和(自身を含む): 328104

約数和(自身を除く): 196184

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 97, 136, 170, 194, 272, 340, 388, 485, 680, 776, 970, 1360, 1552, 1649, 1940, 3298, 3880, 6596, 7760, 8245, 13192, 16490, 26384, 32980, 65960, 131920]

約数ペア:

[(1, 131920), (2, 65960), (4, 32980), (5, 26384), (8, 16490), (10, 13192), (16, 8245), (17, 7760), (20, 6596), (34, 3880), (40, 3298), (68, 1940), (80, 1649), (85, 1552), (97, 1360), (136, 970), (170, 776), (194, 680), (272, 485), (340, 388)]