20488340

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 23964460

約数列:

[1, 2, 4, 5, 10, 20, 59, 97, 118, 179, 194, 236, 295, 358, 388, 485, 590, 716, 895, 970, 1180, 1790, 1940, 3580, 5723, 10561, 11446, 17363, 21122, 22892, 28615, 34726, 42244, 52805, 57230, 69452, 86815, 105610, 114460, 173630, 211220, 347260, 1024417, 2048834, 4097668, 5122085, 10244170, 20488340]

約数ペア:

[(1, 20488340), (2, 10244170), (4, 5122085), (5, 4097668), (10, 2048834), (20, 1024417), (59, 347260), (97, 211220), (118, 173630), (179, 114460), (194, 105610), (236, 86815), (295, 69452), (358, 57230), (388, 52805), (485, 42244), (590, 34726), (716, 28615), (895, 22892), (970, 21122), (1180, 17363), (1790, 11446), (1940, 10561), (3580, 5723)]