221254960

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{16561}}^1$

素因数の和:16741

約数の個数: 40

約数和(自身を含む): 517529376

約数和(自身を除く): 296274416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 6680, 13360, 16561, 33122, 66244, 82805, 132488, 165610, 264976, 331220, 662440, 1324880, 2765687, 5531374, 11062748, 13828435, 22125496, 27656870, 44250992, 55313740, 110627480, 221254960]

約数ペア:

[(1, 221254960), (2, 110627480), (4, 55313740), (5, 44250992), (8, 27656870), (10, 22125496), (16, 13828435), (20, 11062748), (40, 5531374), (80, 2765687), (167, 1324880), (334, 662440), (668, 331220), (835, 264976), (1336, 165610), (1670, 132488), (2672, 82805), (3340, 66244), (6680, 33122), (13360, 16561)]