287557880

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^2\times {\mathrm{563}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 653941080

約数和(自身を除く): 366383200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 563, 565, 904, 1126, 1130, 2252, 2260, 2815, 4504, 4520, 5630, 11260, 12769, 22520, 25538, 51076, 63619, 63845, 102152, 127238, 127690, 254476, 255380, 318095, 508952, 510760, 636190, 1272380, 2544760, 7188947, 14377894, 28755788, 35944735, 57511576, 71889470, 143778940, 287557880]

約数ペア:

[(1, 287557880), (2, 143778940), (4, 71889470), (5, 57511576), (8, 35944735), (10, 28755788), (20, 14377894), (40, 7188947), (113, 2544760), (226, 1272380), (452, 636190), (563, 510760), (565, 508952), (904, 318095), (1126, 255380), (1130, 254476), (2252, 127690), (2260, 127238), (2815, 102152), (4504, 63845), (4520, 63619), (5630, 51076), (11260, 25538), (12769, 22520)]