71880850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:687

約数の個数: 48

約数和(自身を含む): 140113800

約数和(自身を除く): 68232950

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 145, 178, 290, 445, 557, 725, 890, 1114, 1450, 2225, 2581, 2785, 4450, 5162, 5570, 12905, 13925, 16153, 25810, 27850, 32306, 49573, 64525, 80765, 99146, 129050, 161530, 247865, 403825, 495730, 807650, 1239325, 1437617, 2478650, 2875234, 7188085, 14376170, 35940425, 71880850]

約数ペア:

[(1, 71880850), (2, 35940425), (5, 14376170), (10, 7188085), (25, 2875234), (29, 2478650), (50, 1437617), (58, 1239325), (89, 807650), (145, 495730), (178, 403825), (290, 247865), (445, 161530), (557, 129050), (725, 99146), (890, 80765), (1114, 64525), (1450, 49573), (2225, 32306), (2581, 27850), (2785, 25810), (4450, 16153), (5162, 13925), (5570, 12905)]