18090090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 50544000

約数和(自身を除く): 32453910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 71, 90, 95, 114, 142, 149, 171, 190, 213, 285, 298, 342, 355, 426, 447, 570, 639, 710, 745, 855, 894, 1065, 1278, 1341, 1349, 1490, 1710, 2130, 2235, 2682, 2698, 2831, 3195, 4047, 4470, 5662, 6390, 6705, 6745, 8094, 8493, 10579, 12141, 13410, 13490, 14155, 16986, 20235, 21158, 24282, 25479, 28310, 31737, 40470, 42465, 50958, 52895, 60705, 63474, 84930, 95211, 105790, 121410, 127395, 158685, 190422, 201001, 254790, 317370, 402002, 476055, 603003, 952110, 1005005, 1206006, 1809009, 2010010, 3015015, 3618018, 6030030, 9045045, 18090090]

約数ペア:

[(1, 18090090), (2, 9045045), (3, 6030030), (5, 3618018), (6, 3015015), (9, 2010010), (10, 1809009), (15, 1206006), (18, 1005005), (19, 952110), (30, 603003), (38, 476055), (45, 402002), (57, 317370), (71, 254790), (90, 201001), (95, 190422), (114, 158685), (142, 127395), (149, 121410), (171, 105790), (190, 95211), (213, 84930), (285, 63474), (298, 60705), (342, 52895), (355, 50958), (426, 42465), (447, 40470), (570, 31737), (639, 28310), (710, 25479), (745, 24282), (855, 21158), (894, 20235), (1065, 16986), (1278, 14155), (1341, 13490), (1349, 13410), (1490, 12141), (1710, 10579), (2130, 8493), (2235, 8094), (2682, 6745), (2698, 6705), (2831, 6390), (3195, 5662), (4047, 4470)]