208993010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1\times {\mathrm{1609}}^1$

素因数の和:2066

約数の個数: 32

約数和(自身を含む): 389491200

約数和(自身を除く): 180498190

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 419, 838, 1609, 2095, 3218, 4190, 8045, 12989, 16090, 25978, 49879, 64945, 99758, 129890, 249395, 498790, 674171, 1348342, 3370855, 6741710, 20899301, 41798602, 104496505, 208993010]

約数ペア:

[(1, 208993010), (2, 104496505), (5, 41798602), (10, 20899301), (31, 6741710), (62, 3370855), (155, 1348342), (310, 674171), (419, 498790), (838, 249395), (1609, 129890), (2095, 99758), (3218, 64945), (4190, 49879), (8045, 25978), (12989, 16090)]