209993280

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{31249}}^1$

素因数の和:31276

約数の個数: 112

約数和(自身を含む): 762000000

約数和(自身を除く): 552006720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 31249, 62498, 93747, 124996, 156245, 187494, 218743, 249992, 312490, 374988, 437486, 468735, 499984, 624980, 656229, 749976, 874972, 937470, 999968, 1093715, 1249960, 1312458, 1499952, 1749944, 1874940, 1999936, 2187430, 2499920, 2624916, 2999904, 3281145, 3499888, 3749880, 4374860, 4999840, 5249832, 5999808, 6562290, 6999776, 7499760, 8749720, 9999680, 10499664, 13124580, 13999552, 14999520, 17499440, 20999328, 26249160, 29999040, 34998880, 41998656, 52498320, 69997760, 104996640, 209993280]

約数ペア:

[(1, 209993280), (2, 104996640), (3, 69997760), (4, 52498320), (5, 41998656), (6, 34998880), (7, 29999040), (8, 26249160), (10, 20999328), (12, 17499440), (14, 14999520), (15, 13999552), (16, 13124580), (20, 10499664), (21, 9999680), (24, 8749720), (28, 7499760), (30, 6999776), (32, 6562290), (35, 5999808), (40, 5249832), (42, 4999840), (48, 4374860), (56, 3749880), (60, 3499888), (64, 3281145), (70, 2999904), (80, 2624916), (84, 2499920), (96, 2187430), (105, 1999936), (112, 1874940), (120, 1749944), (140, 1499952), (160, 1312458), (168, 1249960), (192, 1093715), (210, 999968), (224, 937470), (240, 874972), (280, 749976), (320, 656229), (336, 624980), (420, 499984), (448, 468735), (480, 437486), (560, 374988), (672, 312490), (840, 249992), (960, 218743), (1120, 187494), (1344, 156245), (1680, 124996), (2240, 93747), (3360, 62498), (6720, 31249)]