26171120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 63745920

約数和(自身を除く): 37574800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 79, 80, 82, 101, 158, 164, 202, 205, 316, 328, 395, 404, 410, 505, 632, 656, 790, 808, 820, 1010, 1264, 1580, 1616, 1640, 2020, 3160, 3239, 3280, 4040, 4141, 6320, 6478, 7979, 8080, 8282, 12956, 15958, 16195, 16564, 20705, 25912, 31916, 32390, 33128, 39895, 41410, 51824, 63832, 64780, 66256, 79790, 82820, 127664, 129560, 159580, 165640, 259120, 319160, 327139, 331280, 638320, 654278, 1308556, 1635695, 2617112, 3271390, 5234224, 6542780, 13085560, 26171120]

約数ペア:

[(1, 26171120), (2, 13085560), (4, 6542780), (5, 5234224), (8, 3271390), (10, 2617112), (16, 1635695), (20, 1308556), (40, 654278), (41, 638320), (79, 331280), (80, 327139), (82, 319160), (101, 259120), (158, 165640), (164, 159580), (202, 129560), (205, 127664), (316, 82820), (328, 79790), (395, 66256), (404, 64780), (410, 63832), (505, 51824), (632, 41410), (656, 39895), (790, 33128), (808, 32390), (820, 31916), (1010, 25912), (1264, 20705), (1580, 16564), (1616, 16195), (1640, 15958), (2020, 12956), (3160, 8282), (3239, 8080), (3280, 7979), (4040, 6478), (4141, 6320)]