18665730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1321}}^1$

素因数の和:1491

約数の個数: 48

約数和(自身を含む): 48876984

約数和(自身を除く): 30211254

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 471, 785, 942, 1321, 1413, 1570, 2355, 2642, 2826, 3963, 4710, 6605, 7065, 7926, 11889, 13210, 14130, 19815, 23778, 39630, 59445, 118890, 207397, 414794, 622191, 1036985, 1244382, 1866573, 2073970, 3110955, 3733146, 6221910, 9332865, 18665730]

約数ペア:

[(1, 18665730), (2, 9332865), (3, 6221910), (5, 3733146), (6, 3110955), (9, 2073970), (10, 1866573), (15, 1244382), (18, 1036985), (30, 622191), (45, 414794), (90, 207397), (157, 118890), (314, 59445), (471, 39630), (785, 23778), (942, 19815), (1321, 14130), (1413, 13210), (1570, 11889), (2355, 7926), (2642, 7065), (2826, 6605), (3963, 4710)]