145531540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^4\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 389612160

約数和(自身を除く): 244080620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 71, 77, 110, 121, 140, 142, 154, 220, 242, 284, 308, 355, 385, 484, 497, 605, 710, 770, 781, 847, 994, 1210, 1331, 1420, 1540, 1562, 1694, 1988, 2420, 2485, 2662, 3124, 3388, 3905, 4235, 4970, 5324, 5467, 6655, 7810, 8470, 8591, 9317, 9940, 10934, 13310, 14641, 15620, 16940, 17182, 18634, 21868, 26620, 27335, 29282, 34364, 37268, 42955, 46585, 54670, 58564, 60137, 73205, 85910, 93170, 94501, 102487, 109340, 120274, 146410, 171820, 186340, 189002, 204974, 240548, 292820, 300685, 378004, 409948, 472505, 512435, 601370, 661507, 945010, 1024870, 1039511, 1202740, 1323014, 1890020, 2049740, 2079022, 2646028, 3307535, 4158044, 5197555, 6615070, 7276577, 10395110, 13230140, 14553154, 20790220, 29106308, 36382885, 72765770, 145531540]

約数ペア:

[(1, 145531540), (2, 72765770), (4, 36382885), (5, 29106308), (7, 20790220), (10, 14553154), (11, 13230140), (14, 10395110), (20, 7276577), (22, 6615070), (28, 5197555), (35, 4158044), (44, 3307535), (55, 2646028), (70, 2079022), (71, 2049740), (77, 1890020), (110, 1323014), (121, 1202740), (140, 1039511), (142, 1024870), (154, 945010), (220, 661507), (242, 601370), (284, 512435), (308, 472505), (355, 409948), (385, 378004), (484, 300685), (497, 292820), (605, 240548), (710, 204974), (770, 189002), (781, 186340), (847, 171820), (994, 146410), (1210, 120274), (1331, 109340), (1420, 102487), (1540, 94501), (1562, 93170), (1694, 85910), (1988, 73205), (2420, 60137), (2485, 58564), (2662, 54670), (3124, 46585), (3388, 42955), (3905, 37268), (4235, 34364), (4970, 29282), (5324, 27335), (5467, 26620), (6655, 21868), (7810, 18634), (8470, 17182), (8591, 16940), (9317, 15620), (9940, 14641), (10934, 13310)]