19127720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1274

約数の個数: 64

約数和(自身を含む): 47589120

約数和(自身を除く): 28461400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1223, 1564, 1955, 2446, 3128, 3910, 4892, 6115, 7820, 9784, 12230, 15640, 20791, 24460, 28129, 41582, 48920, 56258, 83164, 103955, 112516, 140645, 166328, 207910, 225032, 281290, 415820, 478193, 562580, 831640, 956386, 1125160, 1912772, 2390965, 3825544, 4781930, 9563860, 19127720]

約数ペア:

[(1, 19127720), (2, 9563860), (4, 4781930), (5, 3825544), (8, 2390965), (10, 1912772), (17, 1125160), (20, 956386), (23, 831640), (34, 562580), (40, 478193), (46, 415820), (68, 281290), (85, 225032), (92, 207910), (115, 166328), (136, 140645), (170, 112516), (184, 103955), (230, 83164), (340, 56258), (391, 48920), (460, 41582), (680, 28129), (782, 24460), (920, 20791), (1223, 15640), (1564, 12230), (1955, 9784), (2446, 7820), (3128, 6115), (3910, 4892)]