20534080

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:216

約数の個数: 112

約数和(自身を含む): 57058560

約数和(自身を除く): 36524480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 103, 112, 140, 160, 178, 206, 224, 280, 320, 356, 412, 445, 448, 515, 560, 623, 712, 721, 824, 890, 1030, 1120, 1246, 1424, 1442, 1648, 1780, 2060, 2240, 2492, 2848, 2884, 3115, 3296, 3560, 3605, 4120, 4984, 5696, 5768, 6230, 6592, 7120, 7210, 8240, 9167, 9968, 11536, 12460, 14240, 14420, 16480, 18334, 19936, 23072, 24920, 28480, 28840, 32960, 36668, 39872, 45835, 46144, 49840, 57680, 64169, 73336, 91670, 99680, 115360, 128338, 146672, 183340, 199360, 230720, 256676, 293344, 320845, 366680, 513352, 586688, 641690, 733360, 1026704, 1283380, 1466720, 2053408, 2566760, 2933440, 4106816, 5133520, 10267040, 20534080]

約数ペア:

[(1, 20534080), (2, 10267040), (4, 5133520), (5, 4106816), (7, 2933440), (8, 2566760), (10, 2053408), (14, 1466720), (16, 1283380), (20, 1026704), (28, 733360), (32, 641690), (35, 586688), (40, 513352), (56, 366680), (64, 320845), (70, 293344), (80, 256676), (89, 230720), (103, 199360), (112, 183340), (140, 146672), (160, 128338), (178, 115360), (206, 99680), (224, 91670), (280, 73336), (320, 64169), (356, 57680), (412, 49840), (445, 46144), (448, 45835), (515, 39872), (560, 36668), (623, 32960), (712, 28840), (721, 28480), (824, 24920), (890, 23072), (1030, 19936), (1120, 18334), (1246, 16480), (1424, 14420), (1442, 14240), (1648, 12460), (1780, 11536), (2060, 9968), (2240, 9167), (2492, 8240), (2848, 7210), (2884, 7120), (3115, 6592), (3296, 6230), (3560, 5768), (3605, 5696), (4120, 4984)]