19525760

素因数分解:

$2^7\times 5^1\times {\mathrm{30509}}^1$

素因数の和:30528

約数の個数: 32

約数和(自身を含む): 46680300

約数和(自身を除く): 27154540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30509, 61018, 122036, 152545, 244072, 305090, 488144, 610180, 976288, 1220360, 1952576, 2440720, 3905152, 4881440, 9762880, 19525760]

約数ペア:

[(1, 19525760), (2, 9762880), (4, 4881440), (5, 3905152), (8, 2440720), (10, 1952576), (16, 1220360), (20, 976288), (32, 610180), (40, 488144), (64, 305090), (80, 244072), (128, 152545), (160, 122036), (320, 61018), (640, 30509)]