842960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:311

約数の個数: 40

約数和(自身を含む): 2015496

約数和(自身を除く): 1172536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 257, 328, 410, 514, 656, 820, 1028, 1285, 1640, 2056, 2570, 3280, 4112, 5140, 10280, 10537, 20560, 21074, 42148, 52685, 84296, 105370, 168592, 210740, 421480, 842960]

約数ペア:

[(1, 842960), (2, 421480), (4, 210740), (5, 168592), (8, 105370), (10, 84296), (16, 52685), (20, 42148), (40, 21074), (41, 20560), (80, 10537), (82, 10280), (164, 5140), (205, 4112), (257, 3280), (328, 2570), (410, 2056), (514, 1640), (656, 1285), (820, 1028)]