2021613371720

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2087}}^1\times {\mathrm{306541}}^1$

素因数の和:308718

約数の個数: 64

約数和(自身を含む): 4608429811200

約数和(自身を除く): 2586816439480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2087, 3160, 4174, 8348, 10435, 16696, 20870, 41740, 83480, 164873, 306541, 329746, 613082, 659492, 824365, 1226164, 1318984, 1532705, 1648730, 2452328, 3065410, 3297460, 6130820, 6594920, 12261640, 24216739, 48433478, 96866956, 121083695, 193733912, 242167390, 484334780, 639751067, 968669560, 1279502134, 2559004268, 3198755335, 5118008536, 6397510670, 12795021340, 25590042680, 50540334293, 101080668586, 202161337172, 252701671465, 404322674344, 505403342930, 1010806685860, 2021613371720]

約数ペア:

[(1, 2021613371720), (2, 1010806685860), (4, 505403342930), (5, 404322674344), (8, 252701671465), (10, 202161337172), (20, 101080668586), (40, 50540334293), (79, 25590042680), (158, 12795021340), (316, 6397510670), (395, 5118008536), (632, 3198755335), (790, 2559004268), (1580, 1279502134), (2087, 968669560), (3160, 639751067), (4174, 484334780), (8348, 242167390), (10435, 193733912), (16696, 121083695), (20870, 96866956), (41740, 48433478), (83480, 24216739), (164873, 12261640), (306541, 6594920), (329746, 6130820), (613082, 3297460), (659492, 3065410), (824365, 2452328), (1226164, 1648730), (1318984, 1532705)]