212859460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{22501}}^1$

素因数の和:22564

約数の個数: 48

約数和(自身を含む): 499004352

約数和(自身を除く): 286144892

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 22501, 45002, 90004, 112505, 225010, 247511, 450020, 495022, 967543, 990044, 1237555, 1935086, 2475110, 3870172, 4837715, 4950220, 9675430, 10642973, 19350860, 21285946, 42571892, 53214865, 106429730, 212859460]

約数ペア:

[(1, 212859460), (2, 106429730), (4, 53214865), (5, 42571892), (10, 21285946), (11, 19350860), (20, 10642973), (22, 9675430), (43, 4950220), (44, 4837715), (55, 3870172), (86, 2475110), (110, 1935086), (172, 1237555), (215, 990044), (220, 967543), (430, 495022), (473, 450020), (860, 247511), (946, 225010), (1892, 112505), (2365, 90004), (4730, 45002), (9460, 22501)]