25551760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 64995840

約数和(自身を除く): 39444080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 260, 311, 316, 395, 520, 622, 632, 790, 1027, 1040, 1244, 1264, 1555, 1580, 2054, 2488, 3110, 3160, 4043, 4108, 4976, 5135, 6220, 6320, 8086, 8216, 10270, 12440, 16172, 16432, 20215, 20540, 24569, 24880, 32344, 40430, 41080, 49138, 64688, 80860, 82160, 98276, 122845, 161720, 196552, 245690, 319397, 323440, 393104, 491380, 638794, 982760, 1277588, 1596985, 1965520, 2555176, 3193970, 5110352, 6387940, 12775880, 25551760]

約数ペア:

[(1, 25551760), (2, 12775880), (4, 6387940), (5, 5110352), (8, 3193970), (10, 2555176), (13, 1965520), (16, 1596985), (20, 1277588), (26, 982760), (40, 638794), (52, 491380), (65, 393104), (79, 323440), (80, 319397), (104, 245690), (130, 196552), (158, 161720), (208, 122845), (260, 98276), (311, 82160), (316, 80860), (395, 64688), (520, 49138), (622, 41080), (632, 40430), (790, 32344), (1027, 24880), (1040, 24569), (1244, 20540), (1264, 20215), (1555, 16432), (1580, 16172), (2054, 12440), (2488, 10270), (3110, 8216), (3160, 8086), (4043, 6320), (4108, 6220), (4976, 5135)]