198300490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{639679}}^1$

素因数の和:639717

約数の個数: 16

約数和(自身を含む): 368455680

約数和(自身を除く): 170155190

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 639679, 1279358, 3198395, 6396790, 19830049, 39660098, 99150245, 198300490]

約数ペア:

[(1, 198300490), (2, 99150245), (5, 39660098), (10, 19830049), (31, 6396790), (62, 3198395), (155, 1279358), (310, 639679)]