209988668

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 391716864

約数和(自身を除く): 181728196

約数列:

[1, 2, 4, 31, 47, 62, 94, 124, 137, 188, 263, 274, 526, 548, 1052, 1457, 2914, 4247, 5828, 6439, 8153, 8494, 12361, 12878, 16306, 16988, 24722, 25756, 32612, 36031, 49444, 72062, 144124, 199609, 383191, 399218, 766382, 798436, 1116961, 1532764, 1693457, 2233922, 3386914, 4467844, 6773828, 52497167, 104994334, 209988668]

約数ペア:

[(1, 209988668), (2, 104994334), (4, 52497167), (31, 6773828), (47, 4467844), (62, 3386914), (94, 2233922), (124, 1693457), (137, 1532764), (188, 1116961), (263, 798436), (274, 766382), (526, 399218), (548, 383191), (1052, 199609), (1457, 144124), (2914, 72062), (4247, 49444), (5828, 36031), (6439, 32612), (8153, 25756), (8494, 24722), (12361, 16988), (12878, 16306)]