200930420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1447}}^1$

素因数の和:1640

約数の個数: 48

約数和(自身を含む): 433496448

約数和(自身を除く): 232566028

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 131, 212, 262, 265, 524, 530, 655, 1060, 1310, 1447, 2620, 2894, 5788, 6943, 7235, 13886, 14470, 27772, 28940, 34715, 69430, 76691, 138860, 153382, 189557, 306764, 379114, 383455, 758228, 766910, 947785, 1533820, 1895570, 3791140, 10046521, 20093042, 40186084, 50232605, 100465210, 200930420]

約数ペア:

[(1, 200930420), (2, 100465210), (4, 50232605), (5, 40186084), (10, 20093042), (20, 10046521), (53, 3791140), (106, 1895570), (131, 1533820), (212, 947785), (262, 766910), (265, 758228), (524, 383455), (530, 379114), (655, 306764), (1060, 189557), (1310, 153382), (1447, 138860), (2620, 76691), (2894, 69430), (5788, 34715), (6943, 28940), (7235, 27772), (13886, 14470)]