12618980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1399}}^1$

素因数の和:1460

約数の個数: 48

約数和(自身を含む): 29635200

約数和(自身を除く): 17016220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1399, 1804, 2255, 2798, 4510, 5596, 6995, 9020, 13990, 15389, 27980, 30778, 57359, 61556, 76945, 114718, 153890, 229436, 286795, 307780, 573590, 630949, 1147180, 1261898, 2523796, 3154745, 6309490, 12618980]

約数ペア:

[(1, 12618980), (2, 6309490), (4, 3154745), (5, 2523796), (10, 1261898), (11, 1147180), (20, 630949), (22, 573590), (41, 307780), (44, 286795), (55, 229436), (82, 153890), (110, 114718), (164, 76945), (205, 61556), (220, 57359), (410, 30778), (451, 27980), (820, 15389), (902, 13990), (1399, 9020), (1804, 6995), (2255, 5596), (2798, 4510)]