20717491396

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1\times {\mathrm{761}}^1$

素因数の和:1565

約数の個数: 96

約数和(自身を含む): 44334501120

約数和(自身を除く): 23617009724

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 73, 76, 133, 146, 266, 292, 511, 532, 701, 761, 1022, 1387, 1402, 1522, 2044, 2774, 2804, 3044, 4907, 5327, 5548, 9709, 9814, 10654, 13319, 14459, 19418, 19628, 21308, 26638, 28918, 38836, 51173, 53276, 55553, 57836, 93233, 101213, 102346, 111106, 186466, 202426, 204692, 222212, 358211, 372932, 388871, 404852, 533461, 716422, 777742, 972287, 1055507, 1066922, 1432844, 1555484, 1944574, 2111014, 2133844, 3734227, 3889148, 4222028, 6806009, 7388549, 7468454, 10135759, 13612018, 14777098, 14936908, 20271518, 27224036, 29554196, 38942653, 40543036, 70950313, 77885306, 141900626, 155770612, 272598571, 283801252, 545197142, 739910407, 1090394284, 1479820814, 2959641628, 5179372849, 10358745698, 20717491396]

約数ペア:

[(1, 20717491396), (2, 10358745698), (4, 5179372849), (7, 2959641628), (14, 1479820814), (19, 1090394284), (28, 739910407), (38, 545197142), (73, 283801252), (76, 272598571), (133, 155770612), (146, 141900626), (266, 77885306), (292, 70950313), (511, 40543036), (532, 38942653), (701, 29554196), (761, 27224036), (1022, 20271518), (1387, 14936908), (1402, 14777098), (1522, 13612018), (2044, 10135759), (2774, 7468454), (2804, 7388549), (3044, 6806009), (4907, 4222028), (5327, 3889148), (5548, 3734227), (9709, 2133844), (9814, 2111014), (10654, 1944574), (13319, 1555484), (14459, 1432844), (19418, 1066922), (19628, 1055507), (21308, 972287), (26638, 777742), (28918, 716422), (38836, 533461), (51173, 404852), (53276, 388871), (55553, 372932), (57836, 358211), (93233, 222212), (101213, 204692), (102346, 202426), (111106, 186466)]