28696425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 51103872

約数和(自身を除く): 22407447

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 213, 255, 317, 355, 425, 951, 1065, 1207, 1275, 1585, 1775, 3621, 4755, 5325, 5389, 6035, 7925, 16167, 18105, 22507, 23775, 26945, 30175, 67521, 80835, 90525, 112535, 134725, 337605, 382619, 404175, 562675, 1147857, 1688025, 1913095, 5739285, 9565475, 28696425]

約数ペア:

[(1, 28696425), (3, 9565475), (5, 5739285), (15, 1913095), (17, 1688025), (25, 1147857), (51, 562675), (71, 404175), (75, 382619), (85, 337605), (213, 134725), (255, 112535), (317, 90525), (355, 80835), (425, 67521), (951, 30175), (1065, 26945), (1207, 23775), (1275, 22507), (1585, 18105), (1775, 16167), (3621, 7925), (4755, 6035), (5325, 5389)]