17966879980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2437}}^1\times {\mathrm{7523}}^1$

素因数の和:9983

約数の個数: 72

約数和(自身を含む): 43914367728

約数和(自身を除く): 25947487748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2437, 4874, 7523, 9748, 12185, 15046, 17059, 24370, 30092, 34118, 37615, 48740, 52661, 68236, 75230, 85295, 105322, 119413, 150460, 170590, 210644, 238826, 263305, 341180, 368627, 477652, 526610, 597065, 737254, 1053220, 1194130, 1474508, 1843135, 2388260, 3686270, 7372540, 18333551, 36667102, 73334204, 91667755, 128334857, 183335510, 256669714, 366671020, 513339428, 641674285, 898343999, 1283348570, 1796687998, 2566697140, 3593375996, 4491719995, 8983439990, 17966879980]

約数ペア:

[(1, 17966879980), (2, 8983439990), (4, 4491719995), (5, 3593375996), (7, 2566697140), (10, 1796687998), (14, 1283348570), (20, 898343999), (28, 641674285), (35, 513339428), (49, 366671020), (70, 256669714), (98, 183335510), (140, 128334857), (196, 91667755), (245, 73334204), (490, 36667102), (980, 18333551), (2437, 7372540), (4874, 3686270), (7523, 2388260), (9748, 1843135), (12185, 1474508), (15046, 1194130), (17059, 1053220), (24370, 737254), (30092, 597065), (34118, 526610), (37615, 477652), (48740, 368627), (52661, 341180), (68236, 263305), (75230, 238826), (85295, 210644), (105322, 170590), (119413, 150460)]