321945280

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5107}}^1$

素因数の和:5321

約数の個数: 56

約数和(自身を含む): 770674608

約数和(自身を除く): 448729328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1576, 1970, 3152, 3940, 5107, 6304, 7880, 10214, 12608, 15760, 20428, 25535, 31520, 40856, 51070, 63040, 81712, 102140, 163424, 204280, 326848, 408560, 817120, 1006079, 1634240, 2012158, 4024316, 5030395, 8048632, 10060790, 16097264, 20121580, 32194528, 40243160, 64389056, 80486320, 160972640, 321945280]

約数ペア:

[(1, 321945280), (2, 160972640), (4, 80486320), (5, 64389056), (8, 40243160), (10, 32194528), (16, 20121580), (20, 16097264), (32, 10060790), (40, 8048632), (64, 5030395), (80, 4024316), (160, 2012158), (197, 1634240), (320, 1006079), (394, 817120), (788, 408560), (985, 326848), (1576, 204280), (1970, 163424), (3152, 102140), (3940, 81712), (5107, 63040), (6304, 51070), (7880, 40856), (10214, 31520), (12608, 25535), (15760, 20428)]