19810544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:186

約数の個数: 80

約数和(自身を含む): 44622144

約数和(自身を除く): 24811600

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 41, 46, 52, 82, 92, 101, 104, 164, 184, 202, 208, 299, 328, 368, 404, 533, 598, 656, 808, 943, 1066, 1196, 1313, 1616, 1886, 2132, 2323, 2392, 2626, 3772, 4141, 4264, 4646, 4784, 5252, 7544, 8282, 8528, 9292, 10504, 12259, 15088, 16564, 18584, 21008, 24518, 30199, 33128, 37168, 49036, 53833, 60398, 66256, 95243, 98072, 107666, 120796, 190486, 196144, 215332, 241592, 380972, 430664, 483184, 761944, 861328, 1238159, 1523888, 2476318, 4952636, 9905272, 19810544]

約数ペア:

[(1, 19810544), (2, 9905272), (4, 4952636), (8, 2476318), (13, 1523888), (16, 1238159), (23, 861328), (26, 761944), (41, 483184), (46, 430664), (52, 380972), (82, 241592), (92, 215332), (101, 196144), (104, 190486), (164, 120796), (184, 107666), (202, 98072), (208, 95243), (299, 66256), (328, 60398), (368, 53833), (404, 49036), (533, 37168), (598, 33128), (656, 30199), (808, 24518), (943, 21008), (1066, 18584), (1196, 16564), (1313, 15088), (1616, 12259), (1886, 10504), (2132, 9292), (2323, 8528), (2392, 8282), (2626, 7544), (3772, 5252), (4141, 4784), (4264, 4646)]