220777910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 436043520

約数和(自身を除く): 215265610

約数列:

[1, 2, 5, 10, 19, 38, 43, 61, 86, 95, 122, 190, 215, 305, 430, 443, 610, 817, 886, 1159, 1634, 2215, 2318, 2623, 4085, 4430, 5246, 5795, 8170, 8417, 11590, 13115, 16834, 19049, 26230, 27023, 38098, 42085, 49837, 54046, 84170, 95245, 99674, 135115, 190490, 249185, 270230, 361931, 498370, 513437, 723862, 1026874, 1161989, 1809655, 2323978, 2567185, 3619310, 5134370, 5809945, 11619890, 22077791, 44155582, 110388955, 220777910]

約数ペア:

[(1, 220777910), (2, 110388955), (5, 44155582), (10, 22077791), (19, 11619890), (38, 5809945), (43, 5134370), (61, 3619310), (86, 2567185), (95, 2323978), (122, 1809655), (190, 1161989), (215, 1026874), (305, 723862), (430, 513437), (443, 498370), (610, 361931), (817, 270230), (886, 249185), (1159, 190490), (1634, 135115), (2215, 99674), (2318, 95245), (2623, 84170), (4085, 54046), (4430, 49837), (5246, 42085), (5795, 38098), (8170, 27023), (8417, 26230), (11590, 19049), (13115, 16834)]