28745500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 73801728

約数和(自身を除く): 45056228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 125, 140, 172, 175, 191, 215, 250, 301, 350, 382, 430, 500, 602, 700, 764, 860, 875, 955, 1075, 1204, 1337, 1505, 1750, 1910, 2150, 2674, 3010, 3500, 3820, 4300, 4775, 5348, 5375, 6020, 6685, 7525, 8213, 9550, 10750, 13370, 15050, 16426, 19100, 21500, 23875, 26740, 30100, 32852, 33425, 37625, 41065, 47750, 57491, 66850, 75250, 82130, 95500, 114982, 133700, 150500, 164260, 167125, 205325, 229964, 287455, 334250, 410650, 574910, 668500, 821300, 1026625, 1149820, 1437275, 2053250, 2874550, 4106500, 5749100, 7186375, 14372750, 28745500]

約数ペア:

[(1, 28745500), (2, 14372750), (4, 7186375), (5, 5749100), (7, 4106500), (10, 2874550), (14, 2053250), (20, 1437275), (25, 1149820), (28, 1026625), (35, 821300), (43, 668500), (50, 574910), (70, 410650), (86, 334250), (100, 287455), (125, 229964), (140, 205325), (172, 167125), (175, 164260), (191, 150500), (215, 133700), (250, 114982), (301, 95500), (350, 82130), (382, 75250), (430, 66850), (500, 57491), (602, 47750), (700, 41065), (764, 37625), (860, 33425), (875, 32852), (955, 30100), (1075, 26740), (1204, 23875), (1337, 21500), (1505, 19100), (1750, 16426), (1910, 15050), (2150, 13370), (2674, 10750), (3010, 9550), (3500, 8213), (3820, 7525), (4300, 6685), (4775, 6020), (5348, 5375)]