209745040

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 498718080

約数和(自身を除く): 288973040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 151, 179, 194, 302, 358, 388, 485, 604, 716, 755, 776, 895, 970, 1208, 1432, 1510, 1552, 1790, 1940, 2416, 2864, 3020, 3580, 3880, 6040, 7160, 7760, 12080, 14320, 14647, 17363, 27029, 29294, 34726, 54058, 58588, 69452, 73235, 86815, 108116, 117176, 135145, 138904, 146470, 173630, 216232, 234352, 270290, 277808, 292940, 347260, 432464, 540580, 585880, 694520, 1081160, 1171760, 1389040, 2162320, 2621813, 5243626, 10487252, 13109065, 20974504, 26218130, 41949008, 52436260, 104872520, 209745040]

約数ペア:

[(1, 209745040), (2, 104872520), (4, 52436260), (5, 41949008), (8, 26218130), (10, 20974504), (16, 13109065), (20, 10487252), (40, 5243626), (80, 2621813), (97, 2162320), (151, 1389040), (179, 1171760), (194, 1081160), (302, 694520), (358, 585880), (388, 540580), (485, 432464), (604, 347260), (716, 292940), (755, 277808), (776, 270290), (895, 234352), (970, 216232), (1208, 173630), (1432, 146470), (1510, 138904), (1552, 135145), (1790, 117176), (1940, 108116), (2416, 86815), (2864, 73235), (3020, 69452), (3580, 58588), (3880, 54058), (6040, 34726), (7160, 29294), (7760, 27029), (12080, 17363), (14320, 14647)]