159900000020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2503}}^1\times {\mathrm{67961}}^1$

素因数の和:70520

約数の個数: 48

約数和(自身を含む): 343076525568

約数和(自身を除く): 183176525548

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 2503, 5006, 10012, 12515, 25030, 50060, 67961, 117641, 135922, 235282, 271844, 339805, 470564, 588205, 679610, 1176410, 1359220, 2352820, 3194167, 6388334, 12776668, 15970835, 31941670, 63883340, 170106383, 340212766, 680425532, 850531915, 1701063830, 3402127660, 7995000001, 15990000002, 31980000004, 39975000005, 79950000010, 159900000020]

約数ペア:

[(1, 159900000020), (2, 79950000010), (4, 39975000005), (5, 31980000004), (10, 15990000002), (20, 7995000001), (47, 3402127660), (94, 1701063830), (188, 850531915), (235, 680425532), (470, 340212766), (940, 170106383), (2503, 63883340), (5006, 31941670), (10012, 15970835), (12515, 12776668), (25030, 6388334), (50060, 3194167), (67961, 2352820), (117641, 1359220), (135922, 1176410), (235282, 679610), (271844, 588205), (339805, 470564)]