20642256

素因数分解:

$2^4\times 3^3\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:761

約数の個数: 80

約数和(自身を含む): 60174720

約数和(自身を除く): 39532464

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 71, 72, 108, 142, 144, 213, 216, 284, 426, 432, 568, 639, 673, 852, 1136, 1278, 1346, 1704, 1917, 2019, 2556, 2692, 3408, 3834, 4038, 5112, 5384, 6057, 7668, 8076, 10224, 10768, 12114, 15336, 16152, 18171, 24228, 30672, 32304, 36342, 47783, 48456, 72684, 95566, 96912, 143349, 145368, 191132, 286698, 290736, 382264, 430047, 573396, 764528, 860094, 1146792, 1290141, 1720188, 2293584, 2580282, 3440376, 5160564, 6880752, 10321128, 20642256]

約数ペア:

[(1, 20642256), (2, 10321128), (3, 6880752), (4, 5160564), (6, 3440376), (8, 2580282), (9, 2293584), (12, 1720188), (16, 1290141), (18, 1146792), (24, 860094), (27, 764528), (36, 573396), (48, 430047), (54, 382264), (71, 290736), (72, 286698), (108, 191132), (142, 145368), (144, 143349), (213, 96912), (216, 95566), (284, 72684), (426, 48456), (432, 47783), (568, 36342), (639, 32304), (673, 30672), (852, 24228), (1136, 18171), (1278, 16152), (1346, 15336), (1704, 12114), (1917, 10768), (2019, 10224), (2556, 8076), (2692, 7668), (3408, 6057), (3834, 5384), (4038, 5112)]