30289040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19927}}^1$

素因数の和:19959

約数の個数: 40

約数和(自身を含む): 74132160

約数和(自身を除く): 43843120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 19927, 39854, 79708, 99635, 159416, 199270, 318832, 378613, 398540, 757226, 797080, 1514452, 1594160, 1893065, 3028904, 3786130, 6057808, 7572260, 15144520, 30289040]

約数ペア:

[(1, 30289040), (2, 15144520), (4, 7572260), (5, 6057808), (8, 3786130), (10, 3028904), (16, 1893065), (19, 1594160), (20, 1514452), (38, 797080), (40, 757226), (76, 398540), (80, 378613), (95, 318832), (152, 199270), (190, 159416), (304, 99635), (380, 79708), (760, 39854), (1520, 19927)]