209898560

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10753}}^1$

素因数の和:10831

約数の個数: 56

約数和(自身を含む): 508061976

約数和(自身を除く): 298163416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1952, 2440, 3904, 4880, 9760, 10753, 19520, 21506, 43012, 53765, 86024, 107530, 172048, 215060, 344096, 430120, 655933, 688192, 860240, 1311866, 1720480, 2623732, 3279665, 3440960, 5247464, 6559330, 10494928, 13118660, 20989856, 26237320, 41979712, 52474640, 104949280, 209898560]

約数ペア:

[(1, 209898560), (2, 104949280), (4, 52474640), (5, 41979712), (8, 26237320), (10, 20989856), (16, 13118660), (20, 10494928), (32, 6559330), (40, 5247464), (61, 3440960), (64, 3279665), (80, 2623732), (122, 1720480), (160, 1311866), (244, 860240), (305, 688192), (320, 655933), (488, 430120), (610, 344096), (976, 215060), (1220, 172048), (1952, 107530), (2440, 86024), (3904, 53765), (4880, 43012), (9760, 21506), (10753, 19520)]