1555693620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1994479}}^1$

素因数の和:1994504

約数の個数: 48

約数和(自身を含む): 4691016960

約数和(自身を除く): 3135323340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1994479, 3988958, 5983437, 7977916, 9972395, 11966874, 19944790, 23933748, 25928227, 29917185, 39889580, 51856454, 59834370, 77784681, 103712908, 119668740, 129641135, 155569362, 259282270, 311138724, 388923405, 518564540, 777846810, 1555693620]

約数ペア:

[(1, 1555693620), (2, 777846810), (3, 518564540), (4, 388923405), (5, 311138724), (6, 259282270), (10, 155569362), (12, 129641135), (13, 119668740), (15, 103712908), (20, 77784681), (26, 59834370), (30, 51856454), (39, 39889580), (52, 29917185), (60, 25928227), (65, 23933748), (78, 19944790), (130, 11966874), (156, 9972395), (195, 7977916), (260, 5983437), (390, 3988958), (780, 1994479)]