81205164

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{523}}^1$

素因数の和:779

約数の個数: 72

約数和(自身を含む): 217439040

約数和(自身を除く): 136233876

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 227, 228, 342, 454, 523, 681, 684, 908, 1046, 1362, 1569, 2043, 2092, 2724, 3138, 4086, 4313, 4707, 6276, 8172, 8626, 9414, 9937, 12939, 17252, 18828, 19874, 25878, 29811, 38817, 39748, 51756, 59622, 77634, 89433, 118721, 119244, 155268, 178866, 237442, 356163, 357732, 474884, 712326, 1068489, 1424652, 2136978, 2255699, 4273956, 4511398, 6767097, 9022796, 13534194, 20301291, 27068388, 40602582, 81205164]

約数ペア:

[(1, 81205164), (2, 40602582), (3, 27068388), (4, 20301291), (6, 13534194), (9, 9022796), (12, 6767097), (18, 4511398), (19, 4273956), (36, 2255699), (38, 2136978), (57, 1424652), (76, 1068489), (114, 712326), (171, 474884), (227, 357732), (228, 356163), (342, 237442), (454, 178866), (523, 155268), (681, 119244), (684, 118721), (908, 89433), (1046, 77634), (1362, 59622), (1569, 51756), (2043, 39748), (2092, 38817), (2724, 29811), (3138, 25878), (4086, 19874), (4313, 18828), (4707, 17252), (6276, 12939), (8172, 9937), (8626, 9414)]