126401920

素因数分解:

$2^7\times 5^1\times {\mathrm{313}}^1\times {\mathrm{631}}^1$

素因数の和:963

約数の個数: 64

約数和(自身を含む): 303625440

約数和(自身を除く): 177223520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 313, 320, 626, 631, 640, 1252, 1262, 1565, 2504, 2524, 3130, 3155, 5008, 5048, 6260, 6310, 10016, 10096, 12520, 12620, 20032, 20192, 25040, 25240, 40064, 40384, 50080, 50480, 80768, 100160, 100960, 197503, 200320, 201920, 395006, 403840, 790012, 987515, 1580024, 1975030, 3160048, 3950060, 6320096, 7900120, 12640192, 15800240, 25280384, 31600480, 63200960, 126401920]

約数ペア:

[(1, 126401920), (2, 63200960), (4, 31600480), (5, 25280384), (8, 15800240), (10, 12640192), (16, 7900120), (20, 6320096), (32, 3950060), (40, 3160048), (64, 1975030), (80, 1580024), (128, 987515), (160, 790012), (313, 403840), (320, 395006), (626, 201920), (631, 200320), (640, 197503), (1252, 100960), (1262, 100160), (1565, 80768), (2504, 50480), (2524, 50080), (3130, 40384), (3155, 40064), (5008, 25240), (5048, 25040), (6260, 20192), (6310, 20032), (10016, 12620), (10096, 12520)]