About the Number

31387841212

31387841211 ← → 31387841213

2進数表記:11101001110110111000111001010111100

漢数字表記:三百十三億八千七百八十四万千二百十二

素因数分解:

2 2 × 7 2 × 13 1 × 127 1 × 96997 1

素因数の和:97155
約数の個数: 72
約数和(自身を含む): 69354345984
約数和(自身を除く): 37966504772

約数列:
[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 127, 182, 196, 254, 364, 508, 637, 889, 1274, 1651, 1778, 2548, 3302, 3556, 6223, 6604, 11557, 12446, 23114, 24892, 46228, 80899, 96997, 161798, 193994, 323596, 387988, 678979, 1260961, 1357958, 2521922, 2715916, 4752853, 5043844, 8826727, 9505706, 12318619, 17653454, 19011412, 24637238, 35306908, 49274476, 61787089, 86230333, 123574178, 160142047, 172460666, 247148356, 320284094, 344921332, 603612331, 640568188, 1120994329, 1207224662, 2241988658, 2414449324, 4483977316, 7846960303, 15693920606, 31387841212]

約数ペア:
[(1, 31387841212), (2, 15693920606), (4, 7846960303), (7, 4483977316), (13, 2414449324), (14, 2241988658), (26, 1207224662), (28, 1120994329), (49, 640568188), (52, 603612331), (91, 344921332), (98, 320284094), (127, 247148356), (182, 172460666), (196, 160142047), (254, 123574178), (364, 86230333), (508, 61787089), (637, 49274476), (889, 35306908), (1274, 24637238), (1651, 19011412), (1778, 17653454), (2548, 12318619), (3302, 9505706), (3556, 8826727), (6223, 5043844), (6604, 4752853), (11557, 2715916), (12446, 2521922), (23114, 1357958), (24892, 1260961), (46228, 678979), (80899, 387988), (96997, 323596), (161798, 193994)]

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