220606875

素因数分解:

$3^3\times 5^4\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:815

約数の個数: 80

約数和(自身を含む): 432986400

約数和(自身を除く): 212379525

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 125, 135, 153, 225, 255, 375, 425, 459, 625, 675, 765, 769, 1125, 1275, 1875, 2125, 2295, 2307, 3375, 3825, 3845, 5625, 6375, 6921, 10625, 11475, 11535, 13073, 16875, 19125, 19225, 20763, 31875, 34605, 39219, 57375, 57675, 65365, 95625, 96125, 103815, 117657, 173025, 196095, 286875, 288375, 326825, 352971, 480625, 519075, 588285, 865125, 980475, 1441875, 1634125, 1764855, 2595375, 2941425, 4325625, 4902375, 8170625, 8824275, 12976875, 14707125, 24511875, 44121375, 73535625, 220606875]

約数ペア:

[(1, 220606875), (3, 73535625), (5, 44121375), (9, 24511875), (15, 14707125), (17, 12976875), (25, 8824275), (27, 8170625), (45, 4902375), (51, 4325625), (75, 2941425), (85, 2595375), (125, 1764855), (135, 1634125), (153, 1441875), (225, 980475), (255, 865125), (375, 588285), (425, 519075), (459, 480625), (625, 352971), (675, 326825), (765, 288375), (769, 286875), (1125, 196095), (1275, 173025), (1875, 117657), (2125, 103815), (2295, 96125), (2307, 95625), (3375, 65365), (3825, 57675), (3845, 57375), (5625, 39219), (6375, 34605), (6921, 31875), (10625, 20763), (11475, 19225), (11535, 19125), (13073, 16875)]