220121840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{144817}}^1$

素因数の和:144849

約数の個数: 40

約数和(自身を含む): 538722960

約数和(自身を除く): 318601120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 144817, 289634, 579268, 724085, 1158536, 1448170, 2317072, 2751523, 2896340, 5503046, 5792680, 11006092, 11585360, 13757615, 22012184, 27515230, 44024368, 55030460, 110060920, 220121840]

約数ペア:

[(1, 220121840), (2, 110060920), (4, 55030460), (5, 44024368), (8, 27515230), (10, 22012184), (16, 13757615), (19, 11585360), (20, 11006092), (38, 5792680), (40, 5503046), (76, 2896340), (80, 2751523), (95, 2317072), (152, 1448170), (190, 1158536), (304, 724085), (380, 579268), (760, 289634), (1520, 144817)]