213521520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{889673}}^1$

素因数の和:889689

約数の個数: 40

約数和(自身を含む): 661917456

約数和(自身を除く): 448395936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 889673, 1779346, 2669019, 3558692, 4448365, 5338038, 7117384, 8896730, 10676076, 13345095, 14234768, 17793460, 21352152, 26690190, 35586920, 42704304, 53380380, 71173840, 106760760, 213521520]

約数ペア:

[(1, 213521520), (2, 106760760), (3, 71173840), (4, 53380380), (5, 42704304), (6, 35586920), (8, 26690190), (10, 21352152), (12, 17793460), (15, 14234768), (16, 13345095), (20, 10676076), (24, 8896730), (30, 7117384), (40, 5338038), (48, 4448365), (60, 3558692), (80, 2669019), (120, 1779346), (240, 889673)]