12556720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{751}}^1$

素因数の和:794

約数の個数: 80

約数和(自身を含む): 33569280

約数和(自身を除く): 21012560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 751, 760, 836, 880, 1045, 1502, 1520, 1672, 2090, 3004, 3344, 3755, 4180, 6008, 7510, 8261, 8360, 12016, 14269, 15020, 16522, 16720, 28538, 30040, 33044, 41305, 57076, 60080, 66088, 71345, 82610, 114152, 132176, 142690, 156959, 165220, 228304, 285380, 313918, 330440, 570760, 627836, 660880, 784795, 1141520, 1255672, 1569590, 2511344, 3139180, 6278360, 12556720]

約数ペア:

[(1, 12556720), (2, 6278360), (4, 3139180), (5, 2511344), (8, 1569590), (10, 1255672), (11, 1141520), (16, 784795), (19, 660880), (20, 627836), (22, 570760), (38, 330440), (40, 313918), (44, 285380), (55, 228304), (76, 165220), (80, 156959), (88, 142690), (95, 132176), (110, 114152), (152, 82610), (176, 71345), (190, 66088), (209, 60080), (220, 57076), (304, 41305), (380, 33044), (418, 30040), (440, 28538), (751, 16720), (760, 16522), (836, 15020), (880, 14269), (1045, 12016), (1502, 8360), (1520, 8261), (1672, 7510), (2090, 6008), (3004, 4180), (3344, 3755)]