19486520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 27169480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 59, 92, 115, 118, 184, 230, 236, 295, 359, 460, 472, 590, 718, 920, 1180, 1357, 1436, 1795, 2360, 2714, 2872, 3590, 5428, 6785, 7180, 8257, 10856, 13570, 14360, 16514, 21181, 27140, 33028, 41285, 42362, 54280, 66056, 82570, 84724, 105905, 165140, 169448, 211810, 330280, 423620, 487163, 847240, 974326, 1948652, 2435815, 3897304, 4871630, 9743260, 19486520]

約数ペア:

[(1, 19486520), (2, 9743260), (4, 4871630), (5, 3897304), (8, 2435815), (10, 1948652), (20, 974326), (23, 847240), (40, 487163), (46, 423620), (59, 330280), (92, 211810), (115, 169448), (118, 165140), (184, 105905), (230, 84724), (236, 82570), (295, 66056), (359, 54280), (460, 42362), (472, 41285), (590, 33028), (718, 27140), (920, 21181), (1180, 16514), (1357, 14360), (1436, 13570), (1795, 10856), (2360, 8257), (2714, 7180), (2872, 6785), (3590, 5428)]