278328340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1\times {\mathrm{919}}^1$

素因数の和:1744

約数の個数: 48

約数和(自身を含む): 616694400

約数和(自身を除く): 338366060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 797, 919, 1594, 1838, 3188, 3676, 3985, 4595, 7970, 9190, 15143, 15940, 17461, 18380, 30286, 34922, 60572, 69844, 75715, 87305, 151430, 174610, 302860, 349220, 732443, 1464886, 2929772, 3662215, 7324430, 13916417, 14648860, 27832834, 55665668, 69582085, 139164170, 278328340]

約数ペア:

[(1, 278328340), (2, 139164170), (4, 69582085), (5, 55665668), (10, 27832834), (19, 14648860), (20, 13916417), (38, 7324430), (76, 3662215), (95, 2929772), (190, 1464886), (380, 732443), (797, 349220), (919, 302860), (1594, 174610), (1838, 151430), (3188, 87305), (3676, 75715), (3985, 69844), (4595, 60572), (7970, 34922), (9190, 30286), (15143, 18380), (15940, 17461)]