28805360

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^2\times {\mathrm{163}}^1$

素因数の和:270

約数の個数: 60

約数和(自身を含む): 68847528

約数和(自身を除く): 40042168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 163, 188, 235, 326, 376, 470, 652, 752, 815, 940, 1304, 1630, 1880, 2209, 2608, 3260, 3760, 4418, 6520, 7661, 8836, 11045, 13040, 15322, 17672, 22090, 30644, 35344, 38305, 44180, 61288, 76610, 88360, 122576, 153220, 176720, 306440, 360067, 612880, 720134, 1440268, 1800335, 2880536, 3600670, 5761072, 7201340, 14402680, 28805360]

約数ペア:

[(1, 28805360), (2, 14402680), (4, 7201340), (5, 5761072), (8, 3600670), (10, 2880536), (16, 1800335), (20, 1440268), (40, 720134), (47, 612880), (80, 360067), (94, 306440), (163, 176720), (188, 153220), (235, 122576), (326, 88360), (376, 76610), (470, 61288), (652, 44180), (752, 38305), (815, 35344), (940, 30644), (1304, 22090), (1630, 17672), (1880, 15322), (2209, 13040), (2608, 11045), (3260, 8836), (3760, 7661), (4418, 6520)]