220705280

素因数分解:

$2^9\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1181}}^1$

素因数の和:1277

約数の個数: 80

約数和(自身を含む): 536878584

約数和(自身を除く): 316173304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 256, 292, 320, 365, 512, 584, 640, 730, 1168, 1181, 1280, 1460, 2336, 2362, 2560, 2920, 4672, 4724, 5840, 5905, 9344, 9448, 11680, 11810, 18688, 18896, 23360, 23620, 37376, 37792, 46720, 47240, 75584, 86213, 93440, 94480, 151168, 172426, 186880, 188960, 302336, 344852, 377920, 431065, 604672, 689704, 755840, 862130, 1379408, 1511680, 1724260, 2758816, 3023360, 3448520, 5517632, 6897040, 11035264, 13794080, 22070528, 27588160, 44141056, 55176320, 110352640, 220705280]

約数ペア:

[(1, 220705280), (2, 110352640), (4, 55176320), (5, 44141056), (8, 27588160), (10, 22070528), (16, 13794080), (20, 11035264), (32, 6897040), (40, 5517632), (64, 3448520), (73, 3023360), (80, 2758816), (128, 1724260), (146, 1511680), (160, 1379408), (256, 862130), (292, 755840), (320, 689704), (365, 604672), (512, 431065), (584, 377920), (640, 344852), (730, 302336), (1168, 188960), (1181, 186880), (1280, 172426), (1460, 151168), (2336, 94480), (2362, 93440), (2560, 86213), (2920, 75584), (4672, 47240), (4724, 46720), (5840, 37792), (5905, 37376), (9344, 23620), (9448, 23360), (11680, 18896), (11810, 18688)]