20194968140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{107}}^1\times {\mathrm{26141}}^1$

素因数の和:26295

約数の個数: 72

約数和(自身を含む): 45179022672

約数和(自身を除く): 24984054532

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 361, 380, 428, 535, 722, 1070, 1444, 1805, 2033, 2140, 3610, 4066, 7220, 8132, 10165, 20330, 26141, 38627, 40660, 52282, 77254, 104564, 130705, 154508, 193135, 261410, 386270, 496679, 522820, 772540, 993358, 1986716, 2483395, 2797087, 4966790, 5594174, 9436901, 9933580, 11188348, 13985435, 18873802, 27970870, 37747604, 47184505, 53144653, 55941740, 94369010, 106289306, 188738020, 212578612, 265723265, 531446530, 1009748407, 1062893060, 2019496814, 4038993628, 5048742035, 10097484070, 20194968140]

約数ペア:

[(1, 20194968140), (2, 10097484070), (4, 5048742035), (5, 4038993628), (10, 2019496814), (19, 1062893060), (20, 1009748407), (38, 531446530), (76, 265723265), (95, 212578612), (107, 188738020), (190, 106289306), (214, 94369010), (361, 55941740), (380, 53144653), (428, 47184505), (535, 37747604), (722, 27970870), (1070, 18873802), (1444, 13985435), (1805, 11188348), (2033, 9933580), (2140, 9436901), (3610, 5594174), (4066, 4966790), (7220, 2797087), (8132, 2483395), (10165, 1986716), (20330, 993358), (26141, 772540), (38627, 522820), (40660, 496679), (52282, 386270), (77254, 261410), (104564, 193135), (130705, 154508)]