8048740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 20224512

約数和(自身を除く): 12175772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 191, 196, 215, 245, 301, 382, 430, 490, 602, 764, 860, 955, 980, 1204, 1337, 1505, 1910, 2107, 2674, 3010, 3820, 4214, 5348, 6020, 6685, 8213, 8428, 9359, 10535, 13370, 16426, 18718, 21070, 26740, 32852, 37436, 41065, 42140, 46795, 57491, 82130, 93590, 114982, 164260, 187180, 229964, 287455, 402437, 574910, 804874, 1149820, 1609748, 2012185, 4024370, 8048740]

約数ペア:

[(1, 8048740), (2, 4024370), (4, 2012185), (5, 1609748), (7, 1149820), (10, 804874), (14, 574910), (20, 402437), (28, 287455), (35, 229964), (43, 187180), (49, 164260), (70, 114982), (86, 93590), (98, 82130), (140, 57491), (172, 46795), (191, 42140), (196, 41065), (215, 37436), (245, 32852), (301, 26740), (382, 21070), (430, 18718), (490, 16426), (602, 13370), (764, 10535), (860, 9359), (955, 8428), (980, 8213), (1204, 6685), (1337, 6020), (1505, 5348), (1910, 4214), (2107, 3820), (2674, 3010)]