7216820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{677}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 16743888

約数和(自身を除く): 9527068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 677, 820, 1066, 1354, 2132, 2665, 2708, 3385, 5330, 6770, 8801, 10660, 13540, 17602, 27757, 35204, 44005, 55514, 88010, 111028, 138785, 176020, 277570, 360841, 555140, 721682, 1443364, 1804205, 3608410, 7216820]

約数ペア:

[(1, 7216820), (2, 3608410), (4, 1804205), (5, 1443364), (10, 721682), (13, 555140), (20, 360841), (26, 277570), (41, 176020), (52, 138785), (65, 111028), (82, 88010), (130, 55514), (164, 44005), (205, 35204), (260, 27757), (410, 17602), (533, 13540), (677, 10660), (820, 8801), (1066, 6770), (1354, 5330), (2132, 3385), (2665, 2708)]