20286704

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{509}}^1$

素因数の和:617

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 20692816

約数列:

[1, 2, 4, 8, 16, 47, 53, 94, 106, 188, 212, 376, 424, 509, 752, 848, 1018, 2036, 2491, 4072, 4982, 8144, 9964, 19928, 23923, 26977, 39856, 47846, 53954, 95692, 107908, 191384, 215816, 382768, 431632, 1267919, 2535838, 5071676, 10143352, 20286704]

約数ペア:

[(1, 20286704), (2, 10143352), (4, 5071676), (8, 2535838), (16, 1267919), (47, 431632), (53, 382768), (94, 215816), (106, 191384), (188, 107908), (212, 95692), (376, 53954), (424, 47846), (509, 39856), (752, 26977), (848, 23923), (1018, 19928), (2036, 9964), (2491, 8144), (4072, 4982)]