20497048

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:113

約数の個数: 128

約数和(自身を含む): 50803200

約数和(自身を除く): 30306152

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 23, 26, 38, 41, 44, 46, 52, 76, 82, 88, 92, 104, 143, 152, 164, 184, 209, 247, 253, 286, 299, 328, 418, 437, 451, 494, 506, 533, 572, 598, 779, 836, 874, 902, 943, 988, 1012, 1066, 1144, 1196, 1558, 1672, 1748, 1804, 1886, 1976, 2024, 2132, 2392, 2717, 3116, 3289, 3496, 3608, 3772, 4264, 4807, 5434, 5681, 5863, 6232, 6578, 7544, 8569, 9614, 10127, 10373, 10868, 11362, 11726, 12259, 13156, 17138, 17917, 19228, 20254, 20746, 21736, 22724, 23452, 24518, 26312, 34276, 35834, 38456, 40508, 41492, 45448, 46904, 49036, 62491, 68552, 71668, 81016, 82984, 98072, 111397, 124982, 134849, 143336, 197087, 222794, 232921, 249964, 269698, 394174, 445588, 465842, 499928, 539396, 788348, 891176, 931684, 1078792, 1576696, 1863368, 2562131, 5124262, 10248524, 20497048]

約数ペア:

[(1, 20497048), (2, 10248524), (4, 5124262), (8, 2562131), (11, 1863368), (13, 1576696), (19, 1078792), (22, 931684), (23, 891176), (26, 788348), (38, 539396), (41, 499928), (44, 465842), (46, 445588), (52, 394174), (76, 269698), (82, 249964), (88, 232921), (92, 222794), (104, 197087), (143, 143336), (152, 134849), (164, 124982), (184, 111397), (209, 98072), (247, 82984), (253, 81016), (286, 71668), (299, 68552), (328, 62491), (418, 49036), (437, 46904), (451, 45448), (494, 41492), (506, 40508), (533, 38456), (572, 35834), (598, 34276), (779, 26312), (836, 24518), (874, 23452), (902, 22724), (943, 21736), (988, 20746), (1012, 20254), (1066, 19228), (1144, 17917), (1196, 17138), (1558, 13156), (1672, 12259), (1748, 11726), (1804, 11362), (1886, 10868), (1976, 10373), (2024, 10127), (2132, 9614), (2392, 8569), (2717, 7544), (3116, 6578), (3289, 6232), (3496, 5863), (3608, 5681), (3772, 5434), (4264, 4807)]