19424020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12613}}^1$

素因数の和:12640

約数の個数: 48

約数和(自身を含む): 50859648

約数和(自身を除く): 31435628

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12613, 25226, 50452, 63065, 88291, 126130, 138743, 176582, 252260, 277486, 353164, 441455, 554972, 693715, 882910, 971201, 1387430, 1765820, 1942402, 2774860, 3884804, 4856005, 9712010, 19424020]

約数ペア:

[(1, 19424020), (2, 9712010), (4, 4856005), (5, 3884804), (7, 2774860), (10, 1942402), (11, 1765820), (14, 1387430), (20, 971201), (22, 882910), (28, 693715), (35, 554972), (44, 441455), (55, 353164), (70, 277486), (77, 252260), (110, 176582), (140, 138743), (154, 126130), (220, 88291), (308, 63065), (385, 50452), (770, 25226), (1540, 12613)]