31078450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:511

約数の個数: 48

約数和(自身を含む): 62886600

約数和(自身を除く): 31808150

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 137, 274, 325, 349, 650, 685, 698, 1370, 1745, 1781, 3425, 3490, 3562, 4537, 6850, 8725, 8905, 9074, 17450, 17810, 22685, 44525, 45370, 47813, 89050, 95626, 113425, 226850, 239065, 478130, 621569, 1195325, 1243138, 2390650, 3107845, 6215690, 15539225, 31078450]

約数ペア:

[(1, 31078450), (2, 15539225), (5, 6215690), (10, 3107845), (13, 2390650), (25, 1243138), (26, 1195325), (50, 621569), (65, 478130), (130, 239065), (137, 226850), (274, 113425), (325, 95626), (349, 89050), (650, 47813), (685, 45370), (698, 44525), (1370, 22685), (1745, 17810), (1781, 17450), (3425, 9074), (3490, 8905), (3562, 8725), (4537, 6850)]