20565532904

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1297}}^1\times {\mathrm{2749}}^1$

素因数の和:4162

約数の個数: 64

約数和(自身を含む): 44547360000

約数和(自身を除く): 23981827096

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1297, 1442, 2594, 2749, 2884, 5188, 5498, 5768, 9079, 10376, 10996, 18158, 19243, 21992, 36316, 38486, 72632, 76972, 133591, 153944, 267182, 283147, 534364, 566294, 935137, 1068728, 1132588, 1870274, 1982029, 2265176, 3565453, 3740548, 3964058, 7130906, 7481096, 7928116, 14261812, 15856232, 24958171, 28523624, 49916342, 99832684, 199665368, 367241659, 734483318, 1468966636, 2570691613, 2937933272, 5141383226, 10282766452, 20565532904]

約数ペア:

[(1, 20565532904), (2, 10282766452), (4, 5141383226), (7, 2937933272), (8, 2570691613), (14, 1468966636), (28, 734483318), (56, 367241659), (103, 199665368), (206, 99832684), (412, 49916342), (721, 28523624), (824, 24958171), (1297, 15856232), (1442, 14261812), (2594, 7928116), (2749, 7481096), (2884, 7130906), (5188, 3964058), (5498, 3740548), (5768, 3565453), (9079, 2265176), (10376, 1982029), (10996, 1870274), (18158, 1132588), (19243, 1068728), (21992, 935137), (36316, 566294), (38486, 534364), (72632, 283147), (76972, 267182), (133591, 153944)]