19912857584

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{467}}^1\times {\mathrm{140263}}^1$

素因数の和:140757

約数の個数: 40

約数和(自身を含む): 40699002240

約数和(自身を除く): 20786144656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 467, 934, 1868, 3736, 7472, 8873, 17746, 35492, 70984, 140263, 141968, 280526, 561052, 1122104, 2244208, 2664997, 5329994, 10659988, 21319976, 42639952, 65502821, 131005642, 262011284, 524022568, 1048045136, 1244553599, 2489107198, 4978214396, 9956428792, 19912857584]

約数ペア:

[(1, 19912857584), (2, 9956428792), (4, 4978214396), (8, 2489107198), (16, 1244553599), (19, 1048045136), (38, 524022568), (76, 262011284), (152, 131005642), (304, 65502821), (467, 42639952), (934, 21319976), (1868, 10659988), (3736, 5329994), (7472, 2664997), (8873, 2244208), (17746, 1122104), (35492, 561052), (70984, 280526), (140263, 141968)]