20119520

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3067}}^1$

素因数の和:3123

約数の個数: 48

約数和(自身を含む): 48707568

約数和(自身を除く): 28588048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3067, 3280, 6134, 6560, 12268, 15335, 24536, 30670, 49072, 61340, 98144, 122680, 125747, 245360, 251494, 490720, 502988, 628735, 1005976, 1257470, 2011952, 2514940, 4023904, 5029880, 10059760, 20119520]

約数ペア:

[(1, 20119520), (2, 10059760), (4, 5029880), (5, 4023904), (8, 2514940), (10, 2011952), (16, 1257470), (20, 1005976), (32, 628735), (40, 502988), (41, 490720), (80, 251494), (82, 245360), (160, 125747), (164, 122680), (205, 98144), (328, 61340), (410, 49072), (656, 30670), (820, 24536), (1312, 15335), (1640, 12268), (3067, 6560), (3280, 6134)]