18578038

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 30132000

約数和(自身を除く): 11553962

約数列:

[1, 2, 29, 58, 59, 61, 89, 118, 122, 178, 1711, 1769, 2581, 3422, 3538, 3599, 5162, 5251, 5429, 7198, 10502, 10858, 104371, 152279, 157441, 208742, 304558, 314882, 320311, 640622, 9289019, 18578038]

約数ペア:

[(1, 18578038), (2, 9289019), (29, 640622), (58, 320311), (59, 314882), (61, 304558), (89, 208742), (118, 157441), (122, 152279), (178, 104371), (1711, 10858), (1769, 10502), (2581, 7198), (3422, 5429), (3538, 5251), (3599, 5162)]