20175968

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 21918112

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 79, 92, 158, 184, 316, 347, 368, 632, 694, 736, 1264, 1388, 1817, 2528, 2776, 3634, 5552, 7268, 7981, 11104, 14536, 15962, 27413, 29072, 31924, 54826, 58144, 63848, 109652, 127696, 219304, 255392, 438608, 630499, 877216, 1260998, 2521996, 5043992, 10087984, 20175968]

約数ペア:

[(1, 20175968), (2, 10087984), (4, 5043992), (8, 2521996), (16, 1260998), (23, 877216), (32, 630499), (46, 438608), (79, 255392), (92, 219304), (158, 127696), (184, 109652), (316, 63848), (347, 58144), (368, 54826), (632, 31924), (694, 29072), (736, 27413), (1264, 15962), (1388, 14536), (1817, 11104), (2528, 7981), (2776, 7268), (3634, 5552)]