788874640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{1097}}^1$

素因数の和:1300

約数の個数: 80

約数和(自身を含む): 1874813040

約数和(自身を除く): 1085938400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 101, 178, 202, 356, 404, 445, 505, 712, 808, 890, 1010, 1097, 1424, 1616, 1780, 2020, 2194, 3560, 4040, 4388, 5485, 7120, 8080, 8776, 8989, 10970, 17552, 17978, 21940, 35956, 43880, 44945, 71912, 87760, 89890, 97633, 110797, 143824, 179780, 195266, 221594, 359560, 390532, 443188, 488165, 553985, 719120, 781064, 886376, 976330, 1107970, 1562128, 1772752, 1952660, 2215940, 3905320, 4431880, 7810640, 8863760, 9860933, 19721866, 39443732, 49304665, 78887464, 98609330, 157774928, 197218660, 394437320, 788874640]

約数ペア:

[(1, 788874640), (2, 394437320), (4, 197218660), (5, 157774928), (8, 98609330), (10, 78887464), (16, 49304665), (20, 39443732), (40, 19721866), (80, 9860933), (89, 8863760), (101, 7810640), (178, 4431880), (202, 3905320), (356, 2215940), (404, 1952660), (445, 1772752), (505, 1562128), (712, 1107970), (808, 976330), (890, 886376), (1010, 781064), (1097, 719120), (1424, 553985), (1616, 488165), (1780, 443188), (2020, 390532), (2194, 359560), (3560, 221594), (4040, 195266), (4388, 179780), (5485, 143824), (7120, 110797), (8080, 97633), (8776, 89890), (8989, 87760), (10970, 71912), (17552, 44945), (17978, 43880), (21940, 35956)]