19860205

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:588

約数の個数: 16

約数和(自身を含む): 24376320

約数和(自身を除く): 4516115

約数列:

[1, 5, 79, 137, 367, 395, 685, 1835, 10823, 28993, 50279, 54115, 144965, 251395, 3972041, 19860205]

約数ペア:

[(1, 19860205), (5, 3972041), (79, 251395), (137, 144965), (367, 54115), (395, 50279), (685, 28993), (1835, 10823)]