220791040

素因数分解:

$2^8\times 5^1\times {\mathrm{181}}^1\times {\mathrm{953}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 532343448

約数和(自身を除く): 311552408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 256, 320, 362, 640, 724, 905, 953, 1280, 1448, 1810, 1906, 2896, 3620, 3812, 4765, 5792, 7240, 7624, 9530, 11584, 14480, 15248, 19060, 23168, 28960, 30496, 38120, 46336, 57920, 60992, 76240, 115840, 121984, 152480, 172493, 231680, 243968, 304960, 344986, 609920, 689972, 862465, 1219840, 1379944, 1724930, 2759888, 3449860, 5519776, 6899720, 11039552, 13799440, 22079104, 27598880, 44158208, 55197760, 110395520, 220791040]

約数ペア:

[(1, 220791040), (2, 110395520), (4, 55197760), (5, 44158208), (8, 27598880), (10, 22079104), (16, 13799440), (20, 11039552), (32, 6899720), (40, 5519776), (64, 3449860), (80, 2759888), (128, 1724930), (160, 1379944), (181, 1219840), (256, 862465), (320, 689972), (362, 609920), (640, 344986), (724, 304960), (905, 243968), (953, 231680), (1280, 172493), (1448, 152480), (1810, 121984), (1906, 115840), (2896, 76240), (3620, 60992), (3812, 57920), (4765, 46336), (5792, 38120), (7240, 30496), (7624, 28960), (9530, 23168), (11584, 19060), (14480, 15248)]