81203810

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{133121}}^1$

素因数の和:133189

約数の個数: 16

約数和(自身を含む): 148564152

約数和(自身を除く): 67360342

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 133121, 266242, 665605, 1331210, 8120381, 16240762, 40601905, 81203810]

約数ペア:

[(1, 81203810), (2, 40601905), (5, 16240762), (10, 8120381), (61, 1331210), (122, 665605), (305, 266242), (610, 133121)]