77720320

素因数分解:

$2^8\times 5^1\times {\mathrm{60719}}^1$

素因数の和:60740

約数の個数: 36

約数和(自身を含む): 186167520

約数和(自身を除く): 108447200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 60719, 121438, 242876, 303595, 485752, 607190, 971504, 1214380, 1943008, 2428760, 3886016, 4857520, 7772032, 9715040, 15544064, 19430080, 38860160, 77720320]

約数ペア:

[(1, 77720320), (2, 38860160), (4, 19430080), (5, 15544064), (8, 9715040), (10, 7772032), (16, 4857520), (20, 3886016), (32, 2428760), (40, 1943008), (64, 1214380), (80, 971504), (128, 607190), (160, 485752), (256, 303595), (320, 242876), (640, 121438), (1280, 60719)]