12391720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28163}}^1$

素因数の和:28185

約数の個数: 32

約数和(自身を含む): 30417120

約数和(自身を除く): 18025400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 28163, 56326, 112652, 140815, 225304, 281630, 309793, 563260, 619586, 1126520, 1239172, 1548965, 2478344, 3097930, 6195860, 12391720]

約数ペア:

[(1, 12391720), (2, 6195860), (4, 3097930), (5, 2478344), (8, 1548965), (10, 1239172), (11, 1126520), (20, 619586), (22, 563260), (40, 309793), (44, 281630), (55, 225304), (88, 140815), (110, 112652), (220, 56326), (440, 28163)]