20446160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1259}}^1$

素因数の和:1308

約数の個数: 80

約数和(自身を含む): 56246400

約数和(自身を除く): 35800240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1259, 1624, 2030, 2320, 2518, 3248, 4060, 5036, 6295, 8120, 8813, 10072, 12590, 16240, 17626, 20144, 25180, 35252, 36511, 44065, 50360, 70504, 73022, 88130, 100720, 141008, 146044, 176260, 182555, 255577, 292088, 352520, 365110, 511154, 584176, 705040, 730220, 1022308, 1277885, 1460440, 2044616, 2555770, 2920880, 4089232, 5111540, 10223080, 20446160]

約数ペア:

[(1, 20446160), (2, 10223080), (4, 5111540), (5, 4089232), (7, 2920880), (8, 2555770), (10, 2044616), (14, 1460440), (16, 1277885), (20, 1022308), (28, 730220), (29, 705040), (35, 584176), (40, 511154), (56, 365110), (58, 352520), (70, 292088), (80, 255577), (112, 182555), (116, 176260), (140, 146044), (145, 141008), (203, 100720), (232, 88130), (280, 73022), (290, 70504), (406, 50360), (464, 44065), (560, 36511), (580, 35252), (812, 25180), (1015, 20144), (1160, 17626), (1259, 16240), (1624, 12590), (2030, 10072), (2320, 8813), (2518, 8120), (3248, 6295), (4060, 5036)]