99813520

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1259}}^1$

素因数の和:2263

約数の個数: 40

約数和(自身を含む): 232485120

約数和(自身を除く): 132671600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1259, 1982, 2518, 3964, 4955, 5036, 6295, 7928, 9910, 10072, 12590, 15856, 19820, 20144, 25180, 39640, 50360, 79280, 100720, 1247669, 2495338, 4990676, 6238345, 9981352, 12476690, 19962704, 24953380, 49906760, 99813520]

約数ペア:

[(1, 99813520), (2, 49906760), (4, 24953380), (5, 19962704), (8, 12476690), (10, 9981352), (16, 6238345), (20, 4990676), (40, 2495338), (80, 1247669), (991, 100720), (1259, 79280), (1982, 50360), (2518, 39640), (3964, 25180), (4955, 20144), (5036, 19820), (6295, 15856), (7928, 12590), (9910, 10072)]