19749290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 21619030

約数列:

[1, 2, 5, 10, 11, 22, 29, 41, 55, 58, 82, 110, 145, 151, 205, 290, 302, 319, 410, 451, 638, 755, 902, 1189, 1510, 1595, 1661, 2255, 2378, 3190, 3322, 4379, 4510, 5945, 6191, 8305, 8758, 11890, 12382, 13079, 16610, 21895, 26158, 30955, 43790, 48169, 61910, 65395, 68101, 96338, 130790, 136202, 179539, 240845, 340505, 359078, 481690, 681010, 897695, 1795390, 1974929, 3949858, 9874645, 19749290]

約数ペア:

[(1, 19749290), (2, 9874645), (5, 3949858), (10, 1974929), (11, 1795390), (22, 897695), (29, 681010), (41, 481690), (55, 359078), (58, 340505), (82, 240845), (110, 179539), (145, 136202), (151, 130790), (205, 96338), (290, 68101), (302, 65395), (319, 61910), (410, 48169), (451, 43790), (638, 30955), (755, 26158), (902, 21895), (1189, 16610), (1510, 13079), (1595, 12382), (1661, 11890), (2255, 8758), (2378, 8305), (3190, 6191), (3322, 5945), (4379, 4510)]