18102175

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 28262080

約数和(自身を除く): 10159905

約数列:

[1, 5, 7, 13, 25, 35, 65, 73, 91, 109, 175, 325, 365, 455, 511, 545, 763, 949, 1417, 1825, 2275, 2555, 2725, 3815, 4745, 6643, 7085, 7957, 9919, 12775, 19075, 23725, 33215, 35425, 39785, 49595, 55699, 103441, 166075, 198925, 247975, 278495, 517205, 724087, 1392475, 2586025, 3620435, 18102175]

約数ペア:

[(1, 18102175), (5, 3620435), (7, 2586025), (13, 1392475), (25, 724087), (35, 517205), (65, 278495), (73, 247975), (91, 198925), (109, 166075), (175, 103441), (325, 55699), (365, 49595), (455, 39785), (511, 35425), (545, 33215), (763, 23725), (949, 19075), (1417, 12775), (1825, 9919), (2275, 7957), (2555, 7085), (2725, 6643), (3815, 4745)]