2642171320

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{405241}}^1$

素因数の和:405415

約数の個数: 32

約数和(自身を含む): 5981371920

約数和(自身を除く): 3339200600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 405241, 810482, 1620964, 2026205, 3241928, 4052410, 8104820, 16209640, 66054283, 132108566, 264217132, 330271415, 528434264, 660542830, 1321085660, 2642171320]

約数ペア:

[(1, 2642171320), (2, 1321085660), (4, 660542830), (5, 528434264), (8, 330271415), (10, 264217132), (20, 132108566), (40, 66054283), (163, 16209640), (326, 8104820), (652, 4052410), (815, 3241928), (1304, 2026205), (1630, 1620964), (3260, 810482), (6520, 405241)]