20019174920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{521}}^1\times {\mathrm{8501}}^1$

素因数の和:9146

約数の個数: 64

約数和(自身を含む): 45534331440

約数和(自身を除く): 25515156520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 521, 565, 904, 1042, 1130, 2084, 2260, 2605, 4168, 4520, 5210, 8501, 10420, 17002, 20840, 34004, 42505, 58873, 68008, 85010, 117746, 170020, 235492, 294365, 340040, 470984, 588730, 960613, 1177460, 1921226, 2354920, 3842452, 4429021, 4803065, 7684904, 8858042, 9606130, 17716084, 19212260, 22145105, 35432168, 38424520, 44290210, 88580420, 177160840, 500479373, 1000958746, 2001917492, 2502396865, 4003834984, 5004793730, 10009587460, 20019174920]

約数ペア:

[(1, 20019174920), (2, 10009587460), (4, 5004793730), (5, 4003834984), (8, 2502396865), (10, 2001917492), (20, 1000958746), (40, 500479373), (113, 177160840), (226, 88580420), (452, 44290210), (521, 38424520), (565, 35432168), (904, 22145105), (1042, 19212260), (1130, 17716084), (2084, 9606130), (2260, 8858042), (2605, 7684904), (4168, 4803065), (4520, 4429021), (5210, 3842452), (8501, 2354920), (10420, 1921226), (17002, 1177460), (20840, 960613), (34004, 588730), (42505, 470984), (58873, 340040), (68008, 294365), (85010, 235492), (117746, 170020)]