21654080

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{1381}}^1$

素因数の和:1412

約数の個数: 84

約数和(自身を含む): 60025788

約数和(自身を除く): 38371708

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1381, 1568, 1960, 2240, 2762, 3136, 3920, 5524, 6905, 7840, 9667, 11048, 13810, 15680, 19334, 22096, 27620, 38668, 44192, 48335, 55240, 67669, 77336, 88384, 96670, 110480, 135338, 154672, 193340, 220960, 270676, 309344, 338345, 386680, 441920, 541352, 618688, 676690, 773360, 1082704, 1353380, 1546720, 2165408, 2706760, 3093440, 4330816, 5413520, 10827040, 21654080]

約数ペア:

[(1, 21654080), (2, 10827040), (4, 5413520), (5, 4330816), (7, 3093440), (8, 2706760), (10, 2165408), (14, 1546720), (16, 1353380), (20, 1082704), (28, 773360), (32, 676690), (35, 618688), (40, 541352), (49, 441920), (56, 386680), (64, 338345), (70, 309344), (80, 270676), (98, 220960), (112, 193340), (140, 154672), (160, 135338), (196, 110480), (224, 96670), (245, 88384), (280, 77336), (320, 67669), (392, 55240), (448, 48335), (490, 44192), (560, 38668), (784, 27620), (980, 22096), (1120, 19334), (1381, 15680), (1568, 13810), (1960, 11048), (2240, 9667), (2762, 7840), (3136, 6905), (3920, 5524)]