1209975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 2312352

約数和(自身を除く): 1102377

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 73, 75, 85, 195, 219, 221, 255, 325, 365, 425, 663, 949, 975, 1095, 1105, 1241, 1275, 1825, 2847, 3315, 3723, 4745, 5475, 5525, 6205, 14235, 16133, 16575, 18615, 23725, 31025, 48399, 71175, 80665, 93075, 241995, 403325, 1209975]

約数ペア:

[(1, 1209975), (3, 403325), (5, 241995), (13, 93075), (15, 80665), (17, 71175), (25, 48399), (39, 31025), (51, 23725), (65, 18615), (73, 16575), (75, 16133), (85, 14235), (195, 6205), (219, 5525), (221, 5475), (255, 4745), (325, 3723), (365, 3315), (425, 2847), (663, 1825), (949, 1275), (975, 1241), (1095, 1105)]