20199017648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{103657}}^1$

素因数の和:104325

約数の個数: 40

約数和(自身を含む): 41260030320

約数和(自身を除く): 21061012672

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 641, 1282, 2564, 5128, 10256, 12179, 24358, 48716, 97432, 103657, 194864, 207314, 414628, 829256, 1658512, 1969483, 3938966, 7877932, 15755864, 31511728, 66444137, 132888274, 265776548, 531553096, 1063106192, 1262438603, 2524877206, 5049754412, 10099508824, 20199017648]

約数ペア:

[(1, 20199017648), (2, 10099508824), (4, 5049754412), (8, 2524877206), (16, 1262438603), (19, 1063106192), (38, 531553096), (76, 265776548), (152, 132888274), (304, 66444137), (641, 31511728), (1282, 15755864), (2564, 7877932), (5128, 3938966), (10256, 1969483), (12179, 1658512), (24358, 829256), (48716, 414628), (97432, 207314), (103657, 194864)]