206849780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{3943}}^1$

素因数の和:4056

約数の個数: 48

約数和(自身を含む): 451887744

約数和(自身を除く): 245037964

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 172, 215, 244, 305, 430, 610, 860, 1220, 2623, 3943, 5246, 7886, 10492, 13115, 15772, 19715, 26230, 39430, 52460, 78860, 169549, 240523, 339098, 481046, 678196, 847745, 962092, 1202615, 1695490, 2405230, 3390980, 4810460, 10342489, 20684978, 41369956, 51712445, 103424890, 206849780]

約数ペア:

[(1, 206849780), (2, 103424890), (4, 51712445), (5, 41369956), (10, 20684978), (20, 10342489), (43, 4810460), (61, 3390980), (86, 2405230), (122, 1695490), (172, 1202615), (215, 962092), (244, 847745), (305, 678196), (430, 481046), (610, 339098), (860, 240523), (1220, 169549), (2623, 78860), (3943, 52460), (5246, 39430), (7886, 26230), (10492, 19715), (13115, 15772)]