221626875

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^2\times {\mathrm{409}}^1$

素因数の和:466

約数の個数: 60

約数和(自身を含む): 393217880

約数和(自身を除く): 171591005

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 289, 375, 409, 425, 625, 867, 1227, 1275, 1445, 1875, 2045, 2125, 4335, 6135, 6375, 6953, 7225, 10225, 10625, 20859, 21675, 30675, 31875, 34765, 36125, 51125, 104295, 108375, 118201, 153375, 173825, 180625, 255625, 354603, 521475, 541875, 591005, 766875, 869125, 1773015, 2607375, 2955025, 4345625, 8865075, 13036875, 14775125, 44325375, 73875625, 221626875]

約数ペア:

[(1, 221626875), (3, 73875625), (5, 44325375), (15, 14775125), (17, 13036875), (25, 8865075), (51, 4345625), (75, 2955025), (85, 2607375), (125, 1773015), (255, 869125), (289, 766875), (375, 591005), (409, 541875), (425, 521475), (625, 354603), (867, 255625), (1227, 180625), (1275, 173825), (1445, 153375), (1875, 118201), (2045, 108375), (2125, 104295), (4335, 51125), (6135, 36125), (6375, 34765), (6953, 31875), (7225, 30675), (10225, 21675), (10625, 20859)]