20797713760

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{935149}}^1$

素因数の和:935303

約数の個数: 48

約数和(自身を含む): 49488138000

約数和(自身を除く): 28690424240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 4448, 5560, 11120, 22240, 935149, 1870298, 3740596, 4675745, 7481192, 9351490, 14962384, 18702980, 29924768, 37405960, 74811920, 129985711, 149623840, 259971422, 519942844, 649928555, 1039885688, 1299857110, 2079771376, 2599714220, 4159542752, 5199428440, 10398856880, 20797713760]

約数ペア:

[(1, 20797713760), (2, 10398856880), (4, 5199428440), (5, 4159542752), (8, 2599714220), (10, 2079771376), (16, 1299857110), (20, 1039885688), (32, 649928555), (40, 519942844), (80, 259971422), (139, 149623840), (160, 129985711), (278, 74811920), (556, 37405960), (695, 29924768), (1112, 18702980), (1390, 14962384), (2224, 9351490), (2780, 7481192), (4448, 4675745), (5560, 3740596), (11120, 1870298), (22240, 935149)]