18666830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 42069888

約数和(自身を除く): 23403058

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 73, 91, 130, 146, 182, 281, 365, 455, 511, 562, 730, 910, 949, 1022, 1405, 1898, 1967, 2555, 2810, 3653, 3934, 4745, 5110, 6643, 7306, 9490, 9835, 13286, 18265, 19670, 20513, 25571, 33215, 36530, 41026, 51142, 66430, 102565, 127855, 143591, 205130, 255710, 266669, 287182, 533338, 717955, 1333345, 1435910, 1866683, 2666690, 3733366, 9333415, 18666830]

約数ペア:

[(1, 18666830), (2, 9333415), (5, 3733366), (7, 2666690), (10, 1866683), (13, 1435910), (14, 1333345), (26, 717955), (35, 533338), (65, 287182), (70, 266669), (73, 255710), (91, 205130), (130, 143591), (146, 127855), (182, 102565), (281, 66430), (365, 51142), (455, 41026), (511, 36530), (562, 33215), (730, 25571), (910, 20513), (949, 19670), (1022, 18265), (1405, 13286), (1898, 9835), (1967, 9490), (2555, 7306), (2810, 6643), (3653, 5110), (3934, 4745)]