2100022220

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1\times {\mathrm{983}}^1$

素因数の和:1694

約数の個数: 48

約数和(自身を含む): 4443586560

約数和(自身を除く): 2343564340

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 479, 892, 958, 983, 1115, 1916, 1966, 2230, 2395, 3932, 4460, 4790, 4915, 9580, 9830, 19660, 106817, 213634, 219209, 427268, 438418, 470857, 534085, 876836, 941714, 1068170, 1096045, 1883428, 2136340, 2192090, 2354285, 4384180, 4708570, 9417140, 105001111, 210002222, 420004444, 525005555, 1050011110, 2100022220]

約数ペア:

[(1, 2100022220), (2, 1050011110), (4, 525005555), (5, 420004444), (10, 210002222), (20, 105001111), (223, 9417140), (446, 4708570), (479, 4384180), (892, 2354285), (958, 2192090), (983, 2136340), (1115, 1883428), (1916, 1096045), (1966, 1068170), (2230, 941714), (2395, 876836), (3932, 534085), (4460, 470857), (4790, 438418), (4915, 427268), (9580, 219209), (9830, 213634), (19660, 106817)]