20201409920

素因数分解:

$2^7\times 5^1\times {\mathrm{2621}}^1\times {\mathrm{12043}}^1$

素因数の和:14683

約数の個数: 64

約数和(自身を含む): 48316433040

約数和(自身を除く): 28115023120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2621, 5242, 10484, 12043, 13105, 20968, 24086, 26210, 41936, 48172, 52420, 60215, 83872, 96344, 104840, 120430, 167744, 192688, 209680, 240860, 335488, 385376, 419360, 481720, 770752, 838720, 963440, 1541504, 1677440, 1926880, 3853760, 7707520, 31564703, 63129406, 126258812, 157823515, 252517624, 315647030, 505035248, 631294060, 1010070496, 1262588120, 2020140992, 2525176240, 4040281984, 5050352480, 10100704960, 20201409920]

約数ペア:

[(1, 20201409920), (2, 10100704960), (4, 5050352480), (5, 4040281984), (8, 2525176240), (10, 2020140992), (16, 1262588120), (20, 1010070496), (32, 631294060), (40, 505035248), (64, 315647030), (80, 252517624), (128, 157823515), (160, 126258812), (320, 63129406), (640, 31564703), (2621, 7707520), (5242, 3853760), (10484, 1926880), (12043, 1677440), (13105, 1541504), (20968, 963440), (24086, 838720), (26210, 770752), (41936, 481720), (48172, 419360), (52420, 385376), (60215, 335488), (83872, 240860), (96344, 209680), (104840, 192688), (120430, 167744)]