1561500560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{8089}}^1$

素因数の和:8248

約数の個数: 80

約数和(自身を含む): 3852134400

約数和(自身を除く): 2290633840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 127, 152, 190, 254, 304, 380, 508, 635, 760, 1016, 1270, 1520, 2032, 2413, 2540, 4826, 5080, 8089, 9652, 10160, 12065, 16178, 19304, 24130, 32356, 38608, 40445, 48260, 64712, 80890, 96520, 129424, 153691, 161780, 193040, 307382, 323560, 614764, 647120, 768455, 1027303, 1229528, 1536910, 2054606, 2459056, 3073820, 4109212, 5136515, 6147640, 8218424, 10273030, 12295280, 16436848, 19518757, 20546060, 39037514, 41092120, 78075028, 82184240, 97593785, 156150056, 195187570, 312300112, 390375140, 780750280, 1561500560]

約数ペア:

[(1, 1561500560), (2, 780750280), (4, 390375140), (5, 312300112), (8, 195187570), (10, 156150056), (16, 97593785), (19, 82184240), (20, 78075028), (38, 41092120), (40, 39037514), (76, 20546060), (80, 19518757), (95, 16436848), (127, 12295280), (152, 10273030), (190, 8218424), (254, 6147640), (304, 5136515), (380, 4109212), (508, 3073820), (635, 2459056), (760, 2054606), (1016, 1536910), (1270, 1229528), (1520, 1027303), (2032, 768455), (2413, 647120), (2540, 614764), (4826, 323560), (5080, 307382), (8089, 193040), (9652, 161780), (10160, 153691), (12065, 129424), (16178, 96520), (19304, 80890), (24130, 64712), (32356, 48260), (38608, 40445)]