664758544

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{863}}^1\times {\mathrm{1553}}^1$

素因数の和:2455

約数の個数: 40

約数和(自身を含む): 1331914752

約数和(自身を除く): 667156208

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 863, 1553, 1726, 3106, 3452, 6212, 6904, 12424, 13808, 24848, 26753, 48143, 53506, 96286, 107012, 192572, 214024, 385144, 428048, 770288, 1340239, 2680478, 5360956, 10721912, 21443824, 41547409, 83094818, 166189636, 332379272, 664758544]

約数ペア:

[(1, 664758544), (2, 332379272), (4, 166189636), (8, 83094818), (16, 41547409), (31, 21443824), (62, 10721912), (124, 5360956), (248, 2680478), (496, 1340239), (863, 770288), (1553, 428048), (1726, 385144), (3106, 214024), (3452, 192572), (6212, 107012), (6904, 96286), (12424, 53506), (13808, 48143), (24848, 26753)]