28015995

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 53319168

約数和(自身を除く): 25303173

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 705, 735, 811, 987, 1645, 2303, 2433, 4055, 4935, 5677, 6909, 11515, 12165, 17031, 28385, 34545, 38117, 39739, 85155, 114351, 119217, 190585, 198695, 266819, 571755, 596085, 800457, 1334095, 1867733, 4002285, 5603199, 9338665, 28015995]

約数ペア:

[(1, 28015995), (3, 9338665), (5, 5603199), (7, 4002285), (15, 1867733), (21, 1334095), (35, 800457), (47, 596085), (49, 571755), (105, 266819), (141, 198695), (147, 190585), (235, 119217), (245, 114351), (329, 85155), (705, 39739), (735, 38117), (811, 34545), (987, 28385), (1645, 17031), (2303, 12165), (2433, 11515), (4055, 6909), (4935, 5677)]