72015280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:346

約数の個数: 80

約数和(自身を含む): 173560320

約数和(自身を除く): 101545040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 107, 179, 188, 214, 235, 358, 376, 428, 470, 535, 716, 752, 856, 895, 940, 1070, 1432, 1712, 1790, 1880, 2140, 2864, 3580, 3760, 4280, 5029, 7160, 8413, 8560, 10058, 14320, 16826, 19153, 20116, 25145, 33652, 38306, 40232, 42065, 50290, 67304, 76612, 80464, 84130, 95765, 100580, 134608, 153224, 168260, 191530, 201160, 306448, 336520, 383060, 402320, 673040, 766120, 900191, 1532240, 1800382, 3600764, 4500955, 7201528, 9001910, 14403056, 18003820, 36007640, 72015280]

約数ペア:

[(1, 72015280), (2, 36007640), (4, 18003820), (5, 14403056), (8, 9001910), (10, 7201528), (16, 4500955), (20, 3600764), (40, 1800382), (47, 1532240), (80, 900191), (94, 766120), (107, 673040), (179, 402320), (188, 383060), (214, 336520), (235, 306448), (358, 201160), (376, 191530), (428, 168260), (470, 153224), (535, 134608), (716, 100580), (752, 95765), (856, 84130), (895, 80464), (940, 76612), (1070, 67304), (1432, 50290), (1712, 42065), (1790, 40232), (1880, 38306), (2140, 33652), (2864, 25145), (3580, 20116), (3760, 19153), (4280, 16826), (5029, 14320), (7160, 10058), (8413, 8560)]