178868140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{26227}}^1$

素因数の和:26278

約数の個数: 48

約数和(自身を含む): 423005184

約数和(自身を除く): 244137044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 26227, 52454, 104908, 131135, 262270, 288497, 524540, 576994, 813037, 1153988, 1442485, 1626074, 2884970, 3252148, 4065185, 5769940, 8130370, 8943407, 16260740, 17886814, 35773628, 44717035, 89434070, 178868140]

約数ペア:

[(1, 178868140), (2, 89434070), (4, 44717035), (5, 35773628), (10, 17886814), (11, 16260740), (20, 8943407), (22, 8130370), (31, 5769940), (44, 4065185), (55, 3252148), (62, 2884970), (110, 1626074), (124, 1442485), (155, 1153988), (220, 813037), (310, 576994), (341, 524540), (620, 288497), (682, 262270), (1364, 131135), (1705, 104908), (3410, 52454), (6820, 26227)]