71697520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21859}}^1$

素因数の和:21913

約数の個数: 40

約数和(自身を含む): 170770320

約数和(自身を除く): 99072800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 21859, 43718, 87436, 109295, 174872, 218590, 349744, 437180, 874360, 896219, 1748720, 1792438, 3584876, 4481095, 7169752, 8962190, 14339504, 17924380, 35848760, 71697520]

約数ペア:

[(1, 71697520), (2, 35848760), (4, 17924380), (5, 14339504), (8, 8962190), (10, 7169752), (16, 4481095), (20, 3584876), (40, 1792438), (41, 1748720), (80, 896219), (82, 874360), (164, 437180), (205, 349744), (328, 218590), (410, 174872), (656, 109295), (820, 87436), (1640, 43718), (3280, 21859)]