263780240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106363}}^1$

素因数の和:106407

約数の個数: 40

約数和(自身を含む): 633078528

約数和(自身を除く): 369298288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 106363, 212726, 425452, 531815, 850904, 1063630, 1701808, 2127260, 3297253, 4254520, 6594506, 8509040, 13189012, 16486265, 26378024, 32972530, 52756048, 65945060, 131890120, 263780240]

約数ペア:

[(1, 263780240), (2, 131890120), (4, 65945060), (5, 52756048), (8, 32972530), (10, 26378024), (16, 16486265), (20, 13189012), (31, 8509040), (40, 6594506), (62, 4254520), (80, 3297253), (124, 2127260), (155, 1701808), (248, 1063630), (310, 850904), (496, 531815), (620, 425452), (1240, 212726), (2480, 106363)]