20894830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{113}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 42427152

約数和(自身を除く): 21532322

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 113, 205, 226, 410, 451, 565, 902, 1130, 1243, 1681, 2255, 2486, 3362, 4510, 4633, 6215, 8405, 9266, 12430, 16810, 18491, 23165, 36982, 46330, 50963, 92455, 101926, 184910, 189953, 254815, 379906, 509630, 949765, 1899530, 2089483, 4178966, 10447415, 20894830]

約数ペア:

[(1, 20894830), (2, 10447415), (5, 4178966), (10, 2089483), (11, 1899530), (22, 949765), (41, 509630), (55, 379906), (82, 254815), (110, 189953), (113, 184910), (205, 101926), (226, 92455), (410, 50963), (451, 46330), (565, 36982), (902, 23165), (1130, 18491), (1243, 16810), (1681, 12430), (2255, 9266), (2486, 8405), (3362, 6215), (4510, 4633)]