203400220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1\times {\mathrm{617}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 437306688

約数和(自身を除く): 233906468

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 311, 530, 617, 622, 1060, 1234, 1244, 1555, 2468, 3085, 3110, 6170, 6220, 12340, 16483, 32701, 32966, 65402, 65932, 82415, 130804, 163505, 164830, 191887, 327010, 329660, 383774, 654020, 767548, 959435, 1918870, 3837740, 10170011, 20340022, 40680044, 50850055, 101700110, 203400220]

約数ペア:

[(1, 203400220), (2, 101700110), (4, 50850055), (5, 40680044), (10, 20340022), (20, 10170011), (53, 3837740), (106, 1918870), (212, 959435), (265, 767548), (311, 654020), (530, 383774), (617, 329660), (622, 327010), (1060, 191887), (1234, 164830), (1244, 163505), (1555, 130804), (2468, 82415), (3085, 65932), (3110, 65402), (6170, 32966), (6220, 32701), (12340, 16483)]