20694816

素因数分解:

$2^5\times 3^2\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:594

約数の個数: 72

約数和(自身を含む): 59325084

約数和(自身を除く): 38630268

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 181, 288, 362, 397, 543, 724, 794, 1086, 1191, 1448, 1588, 1629, 2172, 2382, 2896, 3176, 3258, 3573, 4344, 4764, 5792, 6352, 6516, 7146, 8688, 9528, 12704, 13032, 14292, 17376, 19056, 26064, 28584, 38112, 52128, 57168, 71857, 114336, 143714, 215571, 287428, 431142, 574856, 646713, 862284, 1149712, 1293426, 1724568, 2299424, 2586852, 3449136, 5173704, 6898272, 10347408, 20694816]

約数ペア:

[(1, 20694816), (2, 10347408), (3, 6898272), (4, 5173704), (6, 3449136), (8, 2586852), (9, 2299424), (12, 1724568), (16, 1293426), (18, 1149712), (24, 862284), (32, 646713), (36, 574856), (48, 431142), (72, 287428), (96, 215571), (144, 143714), (181, 114336), (288, 71857), (362, 57168), (397, 52128), (543, 38112), (724, 28584), (794, 26064), (1086, 19056), (1191, 17376), (1448, 14292), (1588, 13032), (1629, 12704), (2172, 9528), (2382, 8688), (2896, 7146), (3176, 6516), (3258, 6352), (3573, 5792), (4344, 4764)]