20524790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 44900352

約数和(自身を除く): 24375562

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 55, 62, 65, 110, 130, 143, 155, 286, 310, 341, 403, 463, 682, 715, 806, 926, 1430, 1705, 2015, 2315, 3410, 4030, 4433, 4630, 5093, 6019, 8866, 10186, 12038, 14353, 22165, 25465, 28706, 30095, 44330, 50930, 60190, 66209, 71765, 132418, 143530, 157883, 186589, 315766, 331045, 373178, 662090, 789415, 932945, 1578830, 1865890, 2052479, 4104958, 10262395, 20524790]

約数ペア:

[(1, 20524790), (2, 10262395), (5, 4104958), (10, 2052479), (11, 1865890), (13, 1578830), (22, 932945), (26, 789415), (31, 662090), (55, 373178), (62, 331045), (65, 315766), (110, 186589), (130, 157883), (143, 143530), (155, 132418), (286, 71765), (310, 66209), (341, 60190), (403, 50930), (463, 44330), (682, 30095), (715, 28706), (806, 25465), (926, 22165), (1430, 14353), (1705, 12038), (2015, 10186), (2315, 8866), (3410, 6019), (4030, 5093), (4433, 4630)]