201816784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 447193600

約数和(自身を除く): 245376816

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 223, 229, 247, 304, 446, 458, 494, 892, 916, 988, 1784, 1832, 1976, 2899, 2977, 3568, 3664, 3952, 4237, 4351, 5798, 5954, 8474, 8702, 11596, 11908, 16948, 17404, 23192, 23816, 33896, 34808, 46384, 47632, 51067, 55081, 56563, 67792, 69616, 102134, 110162, 113126, 204268, 220324, 226252, 408536, 440648, 452504, 663871, 817072, 881296, 905008, 970273, 1327742, 1940546, 2655484, 3881092, 5310968, 7762184, 10621936, 12613549, 15524368, 25227098, 50454196, 100908392, 201816784]

約数ペア:

[(1, 201816784), (2, 100908392), (4, 50454196), (8, 25227098), (13, 15524368), (16, 12613549), (19, 10621936), (26, 7762184), (38, 5310968), (52, 3881092), (76, 2655484), (104, 1940546), (152, 1327742), (208, 970273), (223, 905008), (229, 881296), (247, 817072), (304, 663871), (446, 452504), (458, 440648), (494, 408536), (892, 226252), (916, 220324), (988, 204268), (1784, 113126), (1832, 110162), (1976, 102134), (2899, 69616), (2977, 67792), (3568, 56563), (3664, 55081), (3952, 51067), (4237, 47632), (4351, 46384), (5798, 34808), (5954, 33896), (8474, 23816), (8702, 23192), (11596, 17404), (11908, 16948)]