31770340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{883}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 76632192

約数和(自身を除く): 44861852

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 883, 1028, 1285, 1766, 1799, 2570, 3532, 3598, 4415, 5140, 6181, 7196, 8830, 8995, 12362, 17660, 17990, 24724, 30905, 35980, 61810, 123620, 226931, 453862, 907724, 1134655, 1588517, 2269310, 3177034, 4538620, 6354068, 7942585, 15885170, 31770340]

約数ペア:

[(1, 31770340), (2, 15885170), (4, 7942585), (5, 6354068), (7, 4538620), (10, 3177034), (14, 2269310), (20, 1588517), (28, 1134655), (35, 907724), (70, 453862), (140, 226931), (257, 123620), (514, 61810), (883, 35980), (1028, 30905), (1285, 24724), (1766, 17990), (1799, 17660), (2570, 12362), (3532, 8995), (3598, 8830), (4415, 7196), (5140, 6181)]