319230925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 445471488

約数和(自身を除く): 126240563

約数列:

[1, 5, 13, 25, 43, 53, 65, 215, 265, 325, 431, 559, 689, 1075, 1325, 2155, 2279, 2795, 3445, 5603, 10775, 11395, 13975, 17225, 18533, 22843, 28015, 29627, 56975, 92665, 114215, 140075, 148135, 240929, 296959, 463325, 571075, 740675, 982249, 1204645, 1484795, 4911245, 6023225, 7423975, 12769237, 24556225, 63846185, 319230925]

約数ペア:

[(1, 319230925), (5, 63846185), (13, 24556225), (25, 12769237), (43, 7423975), (53, 6023225), (65, 4911245), (215, 1484795), (265, 1204645), (325, 982249), (431, 740675), (559, 571075), (689, 463325), (1075, 296959), (1325, 240929), (2155, 148135), (2279, 140075), (2795, 114215), (3445, 92665), (5603, 56975), (10775, 29627), (11395, 28015), (13975, 22843), (17225, 18533)]