40144340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1187}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 89812800

約数和(自身を除く): 49668460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1187, 1691, 1780, 2374, 3382, 4748, 5935, 6764, 8455, 11870, 16910, 22553, 23740, 33820, 45106, 90212, 105643, 112765, 211286, 225530, 422572, 451060, 528215, 1056430, 2007217, 2112860, 4014434, 8028868, 10036085, 20072170, 40144340]

約数ペア:

[(1, 40144340), (2, 20072170), (4, 10036085), (5, 8028868), (10, 4014434), (19, 2112860), (20, 2007217), (38, 1056430), (76, 528215), (89, 451060), (95, 422572), (178, 225530), (190, 211286), (356, 112765), (380, 105643), (445, 90212), (890, 45106), (1187, 33820), (1691, 23740), (1780, 22553), (2374, 16910), (3382, 11870), (4748, 8455), (5935, 6764)]