19965720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{439}}^1$

素因数の和:832

約数の個数: 64

約数和(自身を含む): 60192000

約数和(自身を除く): 40226280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 379, 439, 758, 878, 1137, 1317, 1516, 1756, 1895, 2195, 2274, 2634, 3032, 3512, 3790, 4390, 4548, 5268, 5685, 6585, 7580, 8780, 9096, 10536, 11370, 13170, 15160, 17560, 22740, 26340, 45480, 52680, 166381, 332762, 499143, 665524, 831905, 998286, 1331048, 1663810, 1996572, 2495715, 3327620, 3993144, 4991430, 6655240, 9982860, 19965720]

約数ペア:

[(1, 19965720), (2, 9982860), (3, 6655240), (4, 4991430), (5, 3993144), (6, 3327620), (8, 2495715), (10, 1996572), (12, 1663810), (15, 1331048), (20, 998286), (24, 831905), (30, 665524), (40, 499143), (60, 332762), (120, 166381), (379, 52680), (439, 45480), (758, 26340), (878, 22740), (1137, 17560), (1317, 15160), (1516, 13170), (1756, 11370), (1895, 10536), (2195, 9096), (2274, 8780), (2634, 7580), (3032, 6585), (3512, 5685), (3790, 5268), (4390, 4548)]