129226220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{3821}}^1$

素因数の和:3938

約数の個数: 48

約数和(自身を含む): 288943200

約数和(自身を除く): 159716980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 3821, 6764, 7642, 8455, 15284, 16910, 19105, 33820, 38210, 72599, 76420, 145198, 290396, 340069, 362995, 680138, 725990, 1360276, 1451980, 1700345, 3400690, 6461311, 6801380, 12922622, 25845244, 32306555, 64613110, 129226220]

約数ペア:

[(1, 129226220), (2, 64613110), (4, 32306555), (5, 25845244), (10, 12922622), (19, 6801380), (20, 6461311), (38, 3400690), (76, 1700345), (89, 1451980), (95, 1360276), (178, 725990), (190, 680138), (356, 362995), (380, 340069), (445, 290396), (890, 145198), (1691, 76420), (1780, 72599), (3382, 38210), (3821, 33820), (6764, 19105), (7642, 16910), (8455, 15284)]