20849270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 23664010

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 46, 65, 95, 115, 130, 190, 230, 247, 299, 367, 437, 494, 598, 734, 874, 1235, 1495, 1835, 2185, 2470, 2990, 3670, 4370, 4771, 5681, 6973, 8441, 9542, 11362, 13946, 16882, 23855, 28405, 34865, 42205, 47710, 56810, 69730, 84410, 90649, 109733, 160379, 181298, 219466, 320758, 453245, 548665, 801895, 906490, 1097330, 1603790, 2084927, 4169854, 10424635, 20849270]

約数ペア:

[(1, 20849270), (2, 10424635), (5, 4169854), (10, 2084927), (13, 1603790), (19, 1097330), (23, 906490), (26, 801895), (38, 548665), (46, 453245), (65, 320758), (95, 219466), (115, 181298), (130, 160379), (190, 109733), (230, 90649), (247, 84410), (299, 69730), (367, 56810), (437, 47710), (494, 42205), (598, 34865), (734, 28405), (874, 23855), (1235, 16882), (1495, 13946), (1835, 11362), (2185, 9542), (2470, 8441), (2990, 6973), (3670, 5681), (4370, 4771)]