71884980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21019}}^1$

素因数の和:21053

約数の個数: 72

約数和(自身を含む): 229538400

約数和(自身を除く): 157653420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 21019, 42038, 63057, 84076, 105095, 126114, 189171, 210190, 252228, 315285, 378342, 399361, 420380, 630570, 756684, 798722, 945855, 1198083, 1261140, 1597444, 1891710, 1996805, 2396166, 3594249, 3783420, 3993610, 4792332, 5990415, 7188498, 7987220, 11980830, 14376996, 17971245, 23961660, 35942490, 71884980]

約数ペア:

[(1, 71884980), (2, 35942490), (3, 23961660), (4, 17971245), (5, 14376996), (6, 11980830), (9, 7987220), (10, 7188498), (12, 5990415), (15, 4792332), (18, 3993610), (19, 3783420), (20, 3594249), (30, 2396166), (36, 1996805), (38, 1891710), (45, 1597444), (57, 1261140), (60, 1198083), (76, 945855), (90, 798722), (95, 756684), (114, 630570), (171, 420380), (180, 399361), (190, 378342), (228, 315285), (285, 252228), (342, 210190), (380, 189171), (570, 126114), (684, 105095), (855, 84076), (1140, 63057), (1710, 42038), (3420, 21019)]