390590480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{769}}^1\times {\mathrm{907}}^1$

素因数の和:1696

約数の個数: 80

約数和(自身を含む): 1040350080

約数和(自身を除く): 649759600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 769, 907, 1538, 1814, 3076, 3628, 3845, 4535, 5383, 6152, 6349, 7256, 7690, 9070, 10766, 12304, 12698, 14512, 15380, 18140, 21532, 25396, 26915, 30760, 31745, 36280, 43064, 50792, 53830, 61520, 63490, 72560, 86128, 101584, 107660, 126980, 215320, 253960, 430640, 507920, 697483, 1394966, 2789932, 3487415, 4882381, 5579864, 6974830, 9764762, 11159728, 13949660, 19529524, 24411905, 27899320, 39059048, 48823810, 55798640, 78118096, 97647620, 195295240, 390590480]

約数ペア:

[(1, 390590480), (2, 195295240), (4, 97647620), (5, 78118096), (7, 55798640), (8, 48823810), (10, 39059048), (14, 27899320), (16, 24411905), (20, 19529524), (28, 13949660), (35, 11159728), (40, 9764762), (56, 6974830), (70, 5579864), (80, 4882381), (112, 3487415), (140, 2789932), (280, 1394966), (560, 697483), (769, 507920), (907, 430640), (1538, 253960), (1814, 215320), (3076, 126980), (3628, 107660), (3845, 101584), (4535, 86128), (5383, 72560), (6152, 63490), (6349, 61520), (7256, 53830), (7690, 50792), (9070, 43064), (10766, 36280), (12304, 31745), (12698, 30760), (14512, 26915), (15380, 25396), (18140, 21532)]