20585820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:235

約数の個数: 96

約数和(自身を含む): 60318720

約数和(自身を除く): 39732900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 79, 86, 101, 129, 158, 172, 202, 215, 237, 258, 303, 316, 395, 404, 430, 474, 505, 516, 606, 645, 790, 860, 948, 1010, 1185, 1212, 1290, 1515, 1580, 2020, 2370, 2580, 3030, 3397, 4343, 4740, 6060, 6794, 7979, 8686, 10191, 13029, 13588, 15958, 16985, 17372, 20382, 21715, 23937, 26058, 31916, 33970, 39895, 40764, 43430, 47874, 50955, 52116, 65145, 67940, 79790, 86860, 95748, 101910, 119685, 130290, 159580, 203820, 239370, 260580, 343097, 478740, 686194, 1029291, 1372388, 1715485, 2058582, 3430970, 4117164, 5146455, 6861940, 10292910, 20585820]

約数ペア:

[(1, 20585820), (2, 10292910), (3, 6861940), (4, 5146455), (5, 4117164), (6, 3430970), (10, 2058582), (12, 1715485), (15, 1372388), (20, 1029291), (30, 686194), (43, 478740), (60, 343097), (79, 260580), (86, 239370), (101, 203820), (129, 159580), (158, 130290), (172, 119685), (202, 101910), (215, 95748), (237, 86860), (258, 79790), (303, 67940), (316, 65145), (395, 52116), (404, 50955), (430, 47874), (474, 43430), (505, 40764), (516, 39895), (606, 33970), (645, 31916), (790, 26058), (860, 23937), (948, 21715), (1010, 20382), (1185, 17372), (1212, 16985), (1290, 15958), (1515, 13588), (1580, 13029), (2020, 10191), (2370, 8686), (2580, 7979), (3030, 6794), (3397, 6060), (4343, 4740)]