51130280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31177}}^1$

素因数の和:31229

約数の個数: 32

約数和(自身を含む): 117852840

約数和(自身を除く): 66722560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31177, 62354, 124708, 155885, 249416, 311770, 623540, 1247080, 1278257, 2556514, 5113028, 6391285, 10226056, 12782570, 25565140, 51130280]

約数ペア:

[(1, 51130280), (2, 25565140), (4, 12782570), (5, 10226056), (8, 6391285), (10, 5113028), (20, 2556514), (40, 1278257), (41, 1247080), (82, 623540), (164, 311770), (205, 249416), (328, 155885), (410, 124708), (820, 62354), (1640, 31177)]