128981196

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{701}}^1$

素因数の和:999

約数の個数: 72

約数和(自身を含む): 344962800

約数和(自身を除く): 215981604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 269, 342, 538, 684, 701, 807, 1076, 1402, 1614, 2103, 2421, 2804, 3228, 4206, 4842, 5111, 6309, 8412, 9684, 10222, 12618, 13319, 15333, 20444, 25236, 26638, 30666, 39957, 45999, 53276, 61332, 79914, 91998, 119871, 159828, 183996, 188569, 239742, 377138, 479484, 565707, 754276, 1131414, 1697121, 2262828, 3394242, 3582811, 6788484, 7165622, 10748433, 14331244, 21496866, 32245299, 42993732, 64490598, 128981196]

約数ペア:

[(1, 128981196), (2, 64490598), (3, 42993732), (4, 32245299), (6, 21496866), (9, 14331244), (12, 10748433), (18, 7165622), (19, 6788484), (36, 3582811), (38, 3394242), (57, 2262828), (76, 1697121), (114, 1131414), (171, 754276), (228, 565707), (269, 479484), (342, 377138), (538, 239742), (684, 188569), (701, 183996), (807, 159828), (1076, 119871), (1402, 91998), (1614, 79914), (2103, 61332), (2421, 53276), (2804, 45999), (3228, 39957), (4206, 30666), (4842, 26638), (5111, 25236), (6309, 20444), (8412, 15333), (9684, 13319), (10222, 12618)]