90301960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 250698240

約数和(自身を除く): 160396280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 61, 68, 70, 85, 119, 122, 136, 140, 170, 238, 244, 280, 305, 311, 340, 427, 476, 488, 595, 610, 622, 680, 854, 952, 1037, 1190, 1220, 1244, 1555, 1708, 2074, 2135, 2177, 2380, 2440, 2488, 3110, 3416, 4148, 4270, 4354, 4760, 5185, 5287, 6220, 7259, 8296, 8540, 8708, 10370, 10574, 10885, 12440, 14518, 17080, 17416, 18971, 20740, 21148, 21770, 26435, 29036, 36295, 37009, 37942, 41480, 42296, 43540, 52870, 58072, 72590, 74018, 75884, 87080, 94855, 105740, 132797, 145180, 148036, 151768, 185045, 189710, 211480, 265594, 290360, 296072, 322507, 370090, 379420, 531188, 645014, 663985, 740180, 758840, 1062376, 1290028, 1327970, 1480360, 1612535, 2257549, 2580056, 2655940, 3225070, 4515098, 5311880, 6450140, 9030196, 11287745, 12900280, 18060392, 22575490, 45150980, 90301960]

約数ペア:

[(1, 90301960), (2, 45150980), (4, 22575490), (5, 18060392), (7, 12900280), (8, 11287745), (10, 9030196), (14, 6450140), (17, 5311880), (20, 4515098), (28, 3225070), (34, 2655940), (35, 2580056), (40, 2257549), (56, 1612535), (61, 1480360), (68, 1327970), (70, 1290028), (85, 1062376), (119, 758840), (122, 740180), (136, 663985), (140, 645014), (170, 531188), (238, 379420), (244, 370090), (280, 322507), (305, 296072), (311, 290360), (340, 265594), (427, 211480), (476, 189710), (488, 185045), (595, 151768), (610, 148036), (622, 145180), (680, 132797), (854, 105740), (952, 94855), (1037, 87080), (1190, 75884), (1220, 74018), (1244, 72590), (1555, 58072), (1708, 52870), (2074, 43540), (2135, 42296), (2177, 41480), (2380, 37942), (2440, 37009), (2488, 36295), (3110, 29036), (3416, 26435), (4148, 21770), (4270, 21148), (4354, 20740), (4760, 18971), (5185, 17416), (5287, 17080), (6220, 14518), (7259, 12440), (8296, 10885), (8540, 10574), (8708, 10370)]