12775880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 31449600

約数和(自身を除く): 18673720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 311, 316, 395, 520, 622, 632, 790, 1027, 1244, 1555, 1580, 2054, 2488, 3110, 3160, 4043, 4108, 5135, 6220, 8086, 8216, 10270, 12440, 16172, 20215, 20540, 24569, 32344, 40430, 41080, 49138, 80860, 98276, 122845, 161720, 196552, 245690, 319397, 491380, 638794, 982760, 1277588, 1596985, 2555176, 3193970, 6387940, 12775880]

約数ペア:

[(1, 12775880), (2, 6387940), (4, 3193970), (5, 2555176), (8, 1596985), (10, 1277588), (13, 982760), (20, 638794), (26, 491380), (40, 319397), (52, 245690), (65, 196552), (79, 161720), (104, 122845), (130, 98276), (158, 80860), (260, 49138), (311, 41080), (316, 40430), (395, 32344), (520, 24569), (622, 20540), (632, 20215), (790, 16172), (1027, 12440), (1244, 10270), (1555, 8216), (1580, 8086), (2054, 6220), (2488, 5135), (3110, 4108), (3160, 4043)]