254990260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{373}}^1$

素因数の和:665

約数の個数: 96

約数和(自身を含む): 648426240

約数和(自身を除く): 393435980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 257, 266, 373, 380, 514, 532, 665, 746, 1028, 1285, 1330, 1492, 1799, 1865, 2570, 2611, 2660, 3598, 3730, 4883, 5140, 5222, 7087, 7196, 7460, 8995, 9766, 10444, 13055, 14174, 17990, 19532, 24415, 26110, 28348, 34181, 35435, 35980, 48830, 49609, 52220, 68362, 70870, 95861, 97660, 99218, 136724, 141740, 170905, 191722, 198436, 248045, 341810, 383444, 479305, 496090, 671027, 683620, 958610, 992180, 1342054, 1821359, 1917220, 2684108, 3355135, 3642718, 6710270, 7285436, 9106795, 12749513, 13420540, 18213590, 25499026, 36427180, 50998052, 63747565, 127495130, 254990260]

約数ペア:

[(1, 254990260), (2, 127495130), (4, 63747565), (5, 50998052), (7, 36427180), (10, 25499026), (14, 18213590), (19, 13420540), (20, 12749513), (28, 9106795), (35, 7285436), (38, 6710270), (70, 3642718), (76, 3355135), (95, 2684108), (133, 1917220), (140, 1821359), (190, 1342054), (257, 992180), (266, 958610), (373, 683620), (380, 671027), (514, 496090), (532, 479305), (665, 383444), (746, 341810), (1028, 248045), (1285, 198436), (1330, 191722), (1492, 170905), (1799, 141740), (1865, 136724), (2570, 99218), (2611, 97660), (2660, 95861), (3598, 70870), (3730, 68362), (4883, 52220), (5140, 49609), (5222, 48830), (7087, 35980), (7196, 35435), (7460, 34181), (8995, 28348), (9766, 26110), (10444, 24415), (13055, 19532), (14174, 17990)]