12694220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8243}}^1$

素因数の和:8270

約数の個数: 48

約数和(自身を含む): 33239808

約数和(自身を除く): 20545588

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 8243, 16486, 32972, 41215, 57701, 82430, 90673, 115402, 164860, 181346, 230804, 288505, 362692, 453365, 577010, 634711, 906730, 1154020, 1269422, 1813460, 2538844, 3173555, 6347110, 12694220]

約数ペア:

[(1, 12694220), (2, 6347110), (4, 3173555), (5, 2538844), (7, 1813460), (10, 1269422), (11, 1154020), (14, 906730), (20, 634711), (22, 577010), (28, 453365), (35, 362692), (44, 288505), (55, 230804), (70, 181346), (77, 164860), (110, 115402), (140, 90673), (154, 82430), (220, 57701), (308, 41215), (385, 32972), (770, 16486), (1540, 8243)]