28978880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{761}}^1$

素因数の和:802

約数の個数: 112

約数和(自身を含む): 83612736

約数和(自身を除く): 54633856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 112, 119, 136, 140, 160, 170, 224, 238, 272, 280, 320, 340, 448, 476, 544, 560, 595, 680, 761, 952, 1088, 1120, 1190, 1360, 1522, 1904, 2240, 2380, 2720, 3044, 3805, 3808, 4760, 5327, 5440, 6088, 7610, 7616, 9520, 10654, 12176, 12937, 15220, 19040, 21308, 24352, 25874, 26635, 30440, 38080, 42616, 48704, 51748, 53270, 60880, 64685, 85232, 90559, 103496, 106540, 121760, 129370, 170464, 181118, 206992, 213080, 243520, 258740, 340928, 362236, 413984, 426160, 452795, 517480, 724472, 827968, 852320, 905590, 1034960, 1448944, 1704640, 1811180, 2069920, 2897888, 3622360, 4139840, 5795776, 7244720, 14489440, 28978880]

約数ペア:

[(1, 28978880), (2, 14489440), (4, 7244720), (5, 5795776), (7, 4139840), (8, 3622360), (10, 2897888), (14, 2069920), (16, 1811180), (17, 1704640), (20, 1448944), (28, 1034960), (32, 905590), (34, 852320), (35, 827968), (40, 724472), (56, 517480), (64, 452795), (68, 426160), (70, 413984), (80, 362236), (85, 340928), (112, 258740), (119, 243520), (136, 213080), (140, 206992), (160, 181118), (170, 170464), (224, 129370), (238, 121760), (272, 106540), (280, 103496), (320, 90559), (340, 85232), (448, 64685), (476, 60880), (544, 53270), (560, 51748), (595, 48704), (680, 42616), (761, 38080), (952, 30440), (1088, 26635), (1120, 25874), (1190, 24352), (1360, 21308), (1522, 19040), (1904, 15220), (2240, 12937), (2380, 12176), (2720, 10654), (3044, 9520), (3805, 7616), (3808, 7610), (4760, 6088), (5327, 5440)]