79884020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{4999}}^1$

素因数の和:5072

約数の個数: 48

約数和(自身を含む): 181440000

約数和(自身を除く): 101555980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 3196, 3995, 4999, 7990, 9998, 15980, 19996, 24995, 49990, 84983, 99980, 169966, 234953, 339932, 424915, 469906, 849830, 939812, 1174765, 1699660, 2349530, 3994201, 4699060, 7988402, 15976804, 19971005, 39942010, 79884020]

約数ペア:

[(1, 79884020), (2, 39942010), (4, 19971005), (5, 15976804), (10, 7988402), (17, 4699060), (20, 3994201), (34, 2349530), (47, 1699660), (68, 1174765), (85, 939812), (94, 849830), (170, 469906), (188, 424915), (235, 339932), (340, 234953), (470, 169966), (799, 99980), (940, 84983), (1598, 49990), (3196, 24995), (3995, 19996), (4999, 15980), (7990, 9998)]