81204404

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 154224000

約数和(自身を除く): 73019596

約数列:

[1, 2, 4, 19, 38, 71, 76, 101, 142, 149, 202, 284, 298, 404, 596, 1349, 1919, 2698, 2831, 3838, 5396, 5662, 7171, 7676, 10579, 11324, 14342, 15049, 21158, 28684, 30098, 42316, 60196, 136249, 201001, 272498, 285931, 402002, 544996, 571862, 804004, 1068479, 1143724, 2136958, 4273916, 20301101, 40602202, 81204404]

約数ペア:

[(1, 81204404), (2, 40602202), (4, 20301101), (19, 4273916), (38, 2136958), (71, 1143724), (76, 1068479), (101, 804004), (142, 571862), (149, 544996), (202, 402002), (284, 285931), (298, 272498), (404, 201001), (596, 136249), (1349, 60196), (1919, 42316), (2698, 30098), (2831, 28684), (3838, 21158), (5396, 15049), (5662, 14342), (7171, 11324), (7676, 10579)]