77172020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{124471}}^1$

素因数の和:124511

約数の個数: 24

約数和(自身を含む): 167290368

約数和(自身を除く): 90118348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 124471, 248942, 497884, 622355, 1244710, 2489420, 3858601, 7717202, 15434404, 19293005, 38586010, 77172020]

約数ペア:

[(1, 77172020), (2, 38586010), (4, 19293005), (5, 15434404), (10, 7717202), (20, 3858601), (31, 2489420), (62, 1244710), (124, 622355), (155, 497884), (310, 248942), (620, 124471)]