20910220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 46303488

約数和(自身を除く): 25393268

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 131, 230, 262, 347, 460, 524, 655, 694, 1310, 1388, 1735, 2620, 3013, 3470, 6026, 6940, 7981, 12052, 15065, 15962, 30130, 31924, 39905, 45457, 60260, 79810, 90914, 159620, 181828, 227285, 454570, 909140, 1045511, 2091022, 4182044, 5227555, 10455110, 20910220]

約数ペア:

[(1, 20910220), (2, 10455110), (4, 5227555), (5, 4182044), (10, 2091022), (20, 1045511), (23, 909140), (46, 454570), (92, 227285), (115, 181828), (131, 159620), (230, 90914), (262, 79810), (347, 60260), (460, 45457), (524, 39905), (655, 31924), (694, 30130), (1310, 15962), (1388, 15065), (1735, 12052), (2620, 7981), (3013, 6940), (3470, 6026)]