40820780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2039}}^1$

素因数の和:2079

約数の個数: 96

約数和(自身を含む): 115153920

約数和(自身を除く): 74333140

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1820, 2002, 2039, 2860, 4004, 4078, 5005, 8156, 10010, 10195, 14273, 20020, 20390, 22429, 26507, 28546, 40780, 44858, 53014, 57092, 71365, 89716, 106028, 112145, 132535, 142730, 157003, 185549, 224290, 265070, 285460, 291577, 314006, 371098, 448580, 530140, 583154, 628012, 742196, 785015, 927745, 1166308, 1457885, 1570030, 1855490, 2041039, 2915770, 3140060, 3710980, 4082078, 5831540, 8164156, 10205195, 20410390, 40820780]

約数ペア:

[(1, 40820780), (2, 20410390), (4, 10205195), (5, 8164156), (7, 5831540), (10, 4082078), (11, 3710980), (13, 3140060), (14, 2915770), (20, 2041039), (22, 1855490), (26, 1570030), (28, 1457885), (35, 1166308), (44, 927745), (52, 785015), (55, 742196), (65, 628012), (70, 583154), (77, 530140), (91, 448580), (110, 371098), (130, 314006), (140, 291577), (143, 285460), (154, 265070), (182, 224290), (220, 185549), (260, 157003), (286, 142730), (308, 132535), (364, 112145), (385, 106028), (455, 89716), (572, 71365), (715, 57092), (770, 53014), (910, 44858), (1001, 40780), (1430, 28546), (1540, 26507), (1820, 22429), (2002, 20390), (2039, 20020), (2860, 14273), (4004, 10195), (4078, 10010), (5005, 8156)]