81956070

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:547

約数の個数: 128

約数和(自身を含む): 252794880

約数和(自身を除く): 170838810

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 103, 105, 126, 135, 189, 206, 210, 270, 309, 315, 378, 421, 515, 618, 630, 721, 842, 927, 945, 1030, 1263, 1442, 1545, 1854, 1890, 2105, 2163, 2526, 2781, 2947, 3090, 3605, 3789, 4210, 4326, 4635, 5562, 5894, 6315, 6489, 7210, 7578, 8841, 9270, 10815, 11367, 12630, 12978, 13905, 14735, 17682, 18945, 19467, 21630, 22734, 26523, 27810, 29470, 32445, 37890, 38934, 43363, 44205, 53046, 56835, 64890, 79569, 86726, 88410, 97335, 113670, 130089, 132615, 159138, 194670, 216815, 260178, 265230, 303541, 390267, 397845, 433630, 607082, 650445, 780534, 795690, 910623, 1170801, 1300890, 1517705, 1821246, 1951335, 2341602, 2731869, 3035410, 3902670, 4553115, 5463738, 5854005, 8195607, 9106230, 11708010, 13659345, 16391214, 27318690, 40978035, 81956070]

約数ペア:

[(1, 81956070), (2, 40978035), (3, 27318690), (5, 16391214), (6, 13659345), (7, 11708010), (9, 9106230), (10, 8195607), (14, 5854005), (15, 5463738), (18, 4553115), (21, 3902670), (27, 3035410), (30, 2731869), (35, 2341602), (42, 1951335), (45, 1821246), (54, 1517705), (63, 1300890), (70, 1170801), (90, 910623), (103, 795690), (105, 780534), (126, 650445), (135, 607082), (189, 433630), (206, 397845), (210, 390267), (270, 303541), (309, 265230), (315, 260178), (378, 216815), (421, 194670), (515, 159138), (618, 132615), (630, 130089), (721, 113670), (842, 97335), (927, 88410), (945, 86726), (1030, 79569), (1263, 64890), (1442, 56835), (1545, 53046), (1854, 44205), (1890, 43363), (2105, 38934), (2163, 37890), (2526, 32445), (2781, 29470), (2947, 27810), (3090, 26523), (3605, 22734), (3789, 21630), (4210, 19467), (4326, 18945), (4635, 17682), (5562, 14735), (5894, 13905), (6315, 12978), (6489, 12630), (7210, 11367), (7578, 10815), (8841, 9270)]