19706640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1$

素因数の和:696

約数の個数: 80

約数和(自身を含む): 61597248

約数和(自身を除く): 41890608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 157, 240, 314, 471, 523, 628, 785, 942, 1046, 1256, 1569, 1570, 1884, 2092, 2355, 2512, 2615, 3138, 3140, 3768, 4184, 4710, 5230, 6276, 6280, 7536, 7845, 8368, 9420, 10460, 12552, 12560, 15690, 18840, 20920, 25104, 31380, 37680, 41840, 62760, 82111, 125520, 164222, 246333, 328444, 410555, 492666, 656888, 821110, 985332, 1231665, 1313776, 1642220, 1970664, 2463330, 3284440, 3941328, 4926660, 6568880, 9853320, 19706640]

約数ペア:

[(1, 19706640), (2, 9853320), (3, 6568880), (4, 4926660), (5, 3941328), (6, 3284440), (8, 2463330), (10, 1970664), (12, 1642220), (15, 1313776), (16, 1231665), (20, 985332), (24, 821110), (30, 656888), (40, 492666), (48, 410555), (60, 328444), (80, 246333), (120, 164222), (157, 125520), (240, 82111), (314, 62760), (471, 41840), (523, 37680), (628, 31380), (785, 25104), (942, 20920), (1046, 18840), (1256, 15690), (1569, 12560), (1570, 12552), (1884, 10460), (2092, 9420), (2355, 8368), (2512, 7845), (2615, 7536), (3138, 6280), (3140, 6276), (3768, 5230), (4184, 4710)]