18864430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 38035872

約数和(自身を除く): 19171442

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 151, 155, 302, 310, 403, 755, 806, 961, 1510, 1922, 1963, 2015, 3926, 4030, 4681, 4805, 9362, 9610, 9815, 12493, 19630, 23405, 24986, 46810, 60853, 62465, 121706, 124930, 145111, 290222, 304265, 608530, 725555, 1451110, 1886443, 3772886, 9432215, 18864430]

約数ペア:

[(1, 18864430), (2, 9432215), (5, 3772886), (10, 1886443), (13, 1451110), (26, 725555), (31, 608530), (62, 304265), (65, 290222), (130, 145111), (151, 124930), (155, 121706), (302, 62465), (310, 60853), (403, 46810), (755, 24986), (806, 23405), (961, 19630), (1510, 12493), (1922, 9815), (1963, 9610), (2015, 9362), (3926, 4805), (4030, 4681)]