20493232

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:641

約数の個数: 40

約数和(自身を含む): 41584640

約数和(自身を除く): 21091408

約数列:

[1, 2, 4, 8, 16, 31, 62, 79, 124, 158, 248, 316, 496, 523, 632, 1046, 1264, 2092, 2449, 4184, 4898, 8368, 9796, 16213, 19592, 32426, 39184, 41317, 64852, 82634, 129704, 165268, 259408, 330536, 661072, 1280827, 2561654, 5123308, 10246616, 20493232]

約数ペア:

[(1, 20493232), (2, 10246616), (4, 5123308), (8, 2561654), (16, 1280827), (31, 661072), (62, 330536), (79, 259408), (124, 165268), (158, 129704), (248, 82634), (316, 64852), (496, 41317), (523, 39184), (632, 32426), (1046, 19592), (1264, 16213), (2092, 9796), (2449, 8368), (4184, 4898)]