209993008

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 437114880

約数和(自身を除く): 227121872

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 71, 89, 124, 134, 142, 178, 248, 268, 284, 356, 496, 536, 568, 712, 1072, 1136, 1424, 2077, 2201, 2759, 4154, 4402, 4757, 5518, 5963, 6319, 8308, 8804, 9514, 11036, 11926, 12638, 16616, 17608, 19028, 22072, 23852, 25276, 33232, 35216, 38056, 44144, 47704, 50552, 76112, 95408, 101104, 147467, 184853, 195889, 294934, 369706, 391778, 423373, 589868, 739412, 783556, 846746, 1179736, 1478824, 1567112, 1693492, 2359472, 2957648, 3134224, 3386984, 6773968, 13124563, 26249126, 52498252, 104996504, 209993008]

約数ペア:

[(1, 209993008), (2, 104996504), (4, 52498252), (8, 26249126), (16, 13124563), (31, 6773968), (62, 3386984), (67, 3134224), (71, 2957648), (89, 2359472), (124, 1693492), (134, 1567112), (142, 1478824), (178, 1179736), (248, 846746), (268, 783556), (284, 739412), (356, 589868), (496, 423373), (536, 391778), (568, 369706), (712, 294934), (1072, 195889), (1136, 184853), (1424, 147467), (2077, 101104), (2201, 95408), (2759, 76112), (4154, 50552), (4402, 47704), (4757, 44144), (5518, 38056), (5963, 35216), (6319, 33232), (8308, 25276), (8804, 23852), (9514, 22072), (11036, 19028), (11926, 17608), (12638, 16616)]