2663440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{197}}^1$

素因数の和:236

約数の個数: 60

約数和(自身を含む): 6739524

約数和(自身を除く): 4076084

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 197, 208, 260, 338, 394, 520, 676, 788, 845, 985, 1040, 1352, 1576, 1690, 1970, 2561, 2704, 3152, 3380, 3940, 5122, 6760, 7880, 10244, 12805, 13520, 15760, 20488, 25610, 33293, 40976, 51220, 66586, 102440, 133172, 166465, 204880, 266344, 332930, 532688, 665860, 1331720, 2663440]

約数ペア:

[(1, 2663440), (2, 1331720), (4, 665860), (5, 532688), (8, 332930), (10, 266344), (13, 204880), (16, 166465), (20, 133172), (26, 102440), (40, 66586), (52, 51220), (65, 40976), (80, 33293), (104, 25610), (130, 20488), (169, 15760), (197, 13520), (208, 12805), (260, 10244), (338, 7880), (394, 6760), (520, 5122), (676, 3940), (788, 3380), (845, 3152), (985, 2704), (1040, 2561), (1352, 1970), (1576, 1690)]