81870080

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{383}}^1$

素因数の和:571

約数の個数: 72

約数和(自身を含む): 197793792

約数和(自身を除く): 115923712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 383, 640, 668, 766, 835, 1280, 1336, 1532, 1670, 1915, 2672, 3064, 3340, 3830, 5344, 6128, 6680, 7660, 10688, 12256, 13360, 15320, 21376, 24512, 26720, 30640, 42752, 49024, 53440, 61280, 63961, 98048, 106880, 122560, 127922, 213760, 245120, 255844, 319805, 490240, 511688, 639610, 1023376, 1279220, 2046752, 2558440, 4093504, 5116880, 8187008, 10233760, 16374016, 20467520, 40935040, 81870080]

約数ペア:

[(1, 81870080), (2, 40935040), (4, 20467520), (5, 16374016), (8, 10233760), (10, 8187008), (16, 5116880), (20, 4093504), (32, 2558440), (40, 2046752), (64, 1279220), (80, 1023376), (128, 639610), (160, 511688), (167, 490240), (256, 319805), (320, 255844), (334, 245120), (383, 213760), (640, 127922), (668, 122560), (766, 106880), (835, 98048), (1280, 63961), (1336, 61280), (1532, 53440), (1670, 49024), (1915, 42752), (2672, 30640), (3064, 26720), (3340, 24512), (3830, 21376), (5344, 15320), (6128, 13360), (6680, 12256), (7660, 10688)]