399356720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{9769}}^1$

素因数の和:9862

約数の個数: 80

約数和(自身を含む): 1075794240

約数和(自身を除く): 676437520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 8176, 9769, 10220, 19538, 20440, 39076, 40880, 48845, 68383, 78152, 97690, 136766, 156304, 195380, 273532, 341915, 390760, 547064, 683830, 713137, 781520, 1094128, 1367660, 1426274, 2735320, 2852548, 3565685, 4991959, 5470640, 5705096, 7131370, 9983918, 11410192, 14262740, 19967836, 24959795, 28525480, 39935672, 49919590, 57050960, 79871344, 99839180, 199678360, 399356720]

約数ペア:

[(1, 399356720), (2, 199678360), (4, 99839180), (5, 79871344), (7, 57050960), (8, 49919590), (10, 39935672), (14, 28525480), (16, 24959795), (20, 19967836), (28, 14262740), (35, 11410192), (40, 9983918), (56, 7131370), (70, 5705096), (73, 5470640), (80, 4991959), (112, 3565685), (140, 2852548), (146, 2735320), (280, 1426274), (292, 1367660), (365, 1094128), (511, 781520), (560, 713137), (584, 683830), (730, 547064), (1022, 390760), (1168, 341915), (1460, 273532), (2044, 195380), (2555, 156304), (2920, 136766), (4088, 97690), (5110, 78152), (5840, 68383), (8176, 48845), (9769, 40880), (10220, 39076), (19538, 20440)]