129815060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{1999}}^1$

素因数の和:2216

約数の個数: 48

約数和(自身を含む): 290304000

約数和(自身を除く): 160488940

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 191, 340, 382, 764, 955, 1910, 1999, 3247, 3820, 3998, 6494, 7996, 9995, 12988, 16235, 19990, 32470, 33983, 39980, 64940, 67966, 135932, 169915, 339830, 381809, 679660, 763618, 1527236, 1909045, 3818090, 6490753, 7636180, 12981506, 25963012, 32453765, 64907530, 129815060]

約数ペア:

[(1, 129815060), (2, 64907530), (4, 32453765), (5, 25963012), (10, 12981506), (17, 7636180), (20, 6490753), (34, 3818090), (68, 1909045), (85, 1527236), (170, 763618), (191, 679660), (340, 381809), (382, 339830), (764, 169915), (955, 135932), (1910, 67966), (1999, 64940), (3247, 39980), (3820, 33983), (3998, 32470), (6494, 19990), (7996, 16235), (9995, 12988)]