8980453820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1\times {\mathrm{13487}}^1$

素因数の和:13719

約数の個数: 72

約数和(自身を含む): 20526416064

約数和(自身を除く): 11545962244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 197, 260, 338, 394, 676, 788, 845, 985, 1690, 1970, 2561, 3380, 3940, 5122, 10244, 12805, 13487, 25610, 26974, 33293, 51220, 53948, 66586, 67435, 133172, 134870, 166465, 175331, 269740, 332930, 350662, 665860, 701324, 876655, 1753310, 2279303, 2656939, 3506620, 4558606, 5313878, 9117212, 10627756, 11396515, 13284695, 22793030, 26569390, 34540207, 45586060, 53138780, 69080414, 138160828, 172701035, 345402070, 449022691, 690804140, 898045382, 1796090764, 2245113455, 4490226910, 8980453820]

約数ペア:

[(1, 8980453820), (2, 4490226910), (4, 2245113455), (5, 1796090764), (10, 898045382), (13, 690804140), (20, 449022691), (26, 345402070), (52, 172701035), (65, 138160828), (130, 69080414), (169, 53138780), (197, 45586060), (260, 34540207), (338, 26569390), (394, 22793030), (676, 13284695), (788, 11396515), (845, 10627756), (985, 9117212), (1690, 5313878), (1970, 4558606), (2561, 3506620), (3380, 2656939), (3940, 2279303), (5122, 1753310), (10244, 876655), (12805, 701324), (13487, 665860), (25610, 350662), (26974, 332930), (33293, 269740), (51220, 175331), (53948, 166465), (66586, 134870), (67435, 133172)]