21754400

素因数分解:

$2^5\times 5^2\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:474

約数の個数: 72

約数和(自身を含む): 53996544

約数和(自身を除く): 32242144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 71, 80, 100, 142, 160, 200, 284, 355, 383, 400, 568, 710, 766, 800, 1136, 1420, 1532, 1775, 1915, 2272, 2840, 3064, 3550, 3830, 5680, 6128, 7100, 7660, 9575, 11360, 12256, 14200, 15320, 19150, 27193, 28400, 30640, 38300, 54386, 56800, 61280, 76600, 108772, 135965, 153200, 217544, 271930, 306400, 435088, 543860, 679825, 870176, 1087720, 1359650, 2175440, 2719300, 4350880, 5438600, 10877200, 21754400]

約数ペア:

[(1, 21754400), (2, 10877200), (4, 5438600), (5, 4350880), (8, 2719300), (10, 2175440), (16, 1359650), (20, 1087720), (25, 870176), (32, 679825), (40, 543860), (50, 435088), (71, 306400), (80, 271930), (100, 217544), (142, 153200), (160, 135965), (200, 108772), (284, 76600), (355, 61280), (383, 56800), (400, 54386), (568, 38300), (710, 30640), (766, 28400), (800, 27193), (1136, 19150), (1420, 15320), (1532, 14200), (1775, 12256), (1915, 11360), (2272, 9575), (2840, 7660), (3064, 7100), (3550, 6128), (3830, 5680)]