20107220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 31373356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 41, 62, 70, 82, 113, 124, 140, 155, 164, 205, 217, 226, 287, 310, 410, 434, 452, 565, 574, 620, 791, 820, 868, 1085, 1130, 1148, 1271, 1435, 1582, 2170, 2260, 2542, 2870, 3164, 3503, 3955, 4340, 4633, 5084, 5740, 6355, 7006, 7910, 8897, 9266, 12710, 14012, 15820, 17515, 17794, 18532, 23165, 24521, 25420, 32431, 35030, 35588, 44485, 46330, 49042, 64862, 70060, 88970, 92660, 98084, 122605, 129724, 143623, 162155, 177940, 245210, 287246, 324310, 490420, 574492, 648620, 718115, 1005361, 1436230, 2010722, 2872460, 4021444, 5026805, 10053610, 20107220]

約数ペア:

[(1, 20107220), (2, 10053610), (4, 5026805), (5, 4021444), (7, 2872460), (10, 2010722), (14, 1436230), (20, 1005361), (28, 718115), (31, 648620), (35, 574492), (41, 490420), (62, 324310), (70, 287246), (82, 245210), (113, 177940), (124, 162155), (140, 143623), (155, 129724), (164, 122605), (205, 98084), (217, 92660), (226, 88970), (287, 70060), (310, 64862), (410, 49042), (434, 46330), (452, 44485), (565, 35588), (574, 35030), (620, 32431), (791, 25420), (820, 24521), (868, 23165), (1085, 18532), (1130, 17794), (1148, 17515), (1271, 15820), (1435, 14012), (1582, 12710), (2170, 9266), (2260, 8897), (2542, 7910), (2870, 7006), (3164, 6355), (3503, 5740), (3955, 5084), (4340, 4633)]