20138470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 21851930

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 59, 107, 110, 118, 145, 214, 290, 295, 319, 535, 590, 638, 649, 1070, 1177, 1298, 1595, 1711, 2354, 3103, 3190, 3245, 3422, 5885, 6206, 6313, 6490, 8555, 11770, 12626, 15515, 17110, 18821, 31030, 31565, 34133, 37642, 63130, 68266, 69443, 94105, 138886, 170665, 183077, 188210, 341330, 347215, 366154, 694430, 915385, 1830770, 2013847, 4027694, 10069235, 20138470]

約数ペア:

[(1, 20138470), (2, 10069235), (5, 4027694), (10, 2013847), (11, 1830770), (22, 915385), (29, 694430), (55, 366154), (58, 347215), (59, 341330), (107, 188210), (110, 183077), (118, 170665), (145, 138886), (214, 94105), (290, 69443), (295, 68266), (319, 63130), (535, 37642), (590, 34133), (638, 31565), (649, 31030), (1070, 18821), (1177, 17110), (1298, 15515), (1595, 12626), (1711, 11770), (2354, 8555), (3103, 6490), (3190, 6313), (3245, 6206), (3422, 5885)]