2779950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 7070976

約数和(自身を除く): 4291026

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 43, 50, 75, 86, 129, 150, 215, 258, 430, 431, 645, 862, 1075, 1290, 1293, 2150, 2155, 2586, 3225, 4310, 6450, 6465, 10775, 12930, 18533, 21550, 32325, 37066, 55599, 64650, 92665, 111198, 185330, 277995, 463325, 555990, 926650, 1389975, 2779950]

約数ペア:

[(1, 2779950), (2, 1389975), (3, 926650), (5, 555990), (6, 463325), (10, 277995), (15, 185330), (25, 111198), (30, 92665), (43, 64650), (50, 55599), (75, 37066), (86, 32325), (129, 21550), (150, 18533), (215, 12930), (258, 10775), (430, 6465), (431, 6450), (645, 4310), (862, 3225), (1075, 2586), (1290, 2155), (1293, 2150)]