28656880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:794

約数の個数: 80

約数和(自身を含む): 77298624

約数和(自身を除く): 48641744

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, 701, 730, 1022, 1168, 1402, 1460, 2044, 2555, 2804, 2920, 3505, 4088, 4907, 5110, 5608, 5840, 7010, 8176, 9814, 10220, 11216, 14020, 19628, 20440, 24535, 28040, 39256, 40880, 49070, 51173, 56080, 78512, 98140, 102346, 196280, 204692, 255865, 358211, 392560, 409384, 511730, 716422, 818768, 1023460, 1432844, 1791055, 2046920, 2865688, 3582110, 4093840, 5731376, 7164220, 14328440, 28656880]

約数ペア:

[(1, 28656880), (2, 14328440), (4, 7164220), (5, 5731376), (7, 4093840), (8, 3582110), (10, 2865688), (14, 2046920), (16, 1791055), (20, 1432844), (28, 1023460), (35, 818768), (40, 716422), (56, 511730), (70, 409384), (73, 392560), (80, 358211), (112, 255865), (140, 204692), (146, 196280), (280, 102346), (292, 98140), (365, 78512), (511, 56080), (560, 51173), (584, 49070), (701, 40880), (730, 39256), (1022, 28040), (1168, 24535), (1402, 20440), (1460, 19628), (2044, 14020), (2555, 11216), (2804, 10220), (2920, 9814), (3505, 8176), (4088, 7010), (4907, 5840), (5110, 5608)]