8212840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 19699200

約数和(自身を除く): 11486360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 79, 92, 113, 115, 158, 184, 226, 230, 316, 395, 452, 460, 565, 632, 790, 904, 920, 1130, 1580, 1817, 2260, 2599, 3160, 3634, 4520, 5198, 7268, 8927, 9085, 10396, 12995, 14536, 17854, 18170, 20792, 25990, 35708, 36340, 44635, 51980, 71416, 72680, 89270, 103960, 178540, 205321, 357080, 410642, 821284, 1026605, 1642568, 2053210, 4106420, 8212840]

約数ペア:

[(1, 8212840), (2, 4106420), (4, 2053210), (5, 1642568), (8, 1026605), (10, 821284), (20, 410642), (23, 357080), (40, 205321), (46, 178540), (79, 103960), (92, 89270), (113, 72680), (115, 71416), (158, 51980), (184, 44635), (226, 36340), (230, 35708), (316, 25990), (395, 20792), (452, 18170), (460, 17854), (565, 14536), (632, 12995), (790, 10396), (904, 9085), (920, 8927), (1130, 7268), (1580, 5198), (1817, 4520), (2260, 3634), (2599, 3160)]