68443280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{167}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 164989440

約数和(自身を除く): 96546160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 109, 167, 188, 218, 235, 334, 376, 436, 470, 545, 668, 752, 835, 872, 940, 1090, 1336, 1670, 1744, 1880, 2180, 2672, 3340, 3760, 4360, 5123, 6680, 7849, 8720, 10246, 13360, 15698, 18203, 20492, 25615, 31396, 36406, 39245, 40984, 51230, 62792, 72812, 78490, 81968, 91015, 102460, 125584, 145624, 156980, 182030, 204920, 291248, 313960, 364060, 409840, 627920, 728120, 855541, 1456240, 1711082, 3422164, 4277705, 6844328, 8555410, 13688656, 17110820, 34221640, 68443280]

約数ペア:

[(1, 68443280), (2, 34221640), (4, 17110820), (5, 13688656), (8, 8555410), (10, 6844328), (16, 4277705), (20, 3422164), (40, 1711082), (47, 1456240), (80, 855541), (94, 728120), (109, 627920), (167, 409840), (188, 364060), (218, 313960), (235, 291248), (334, 204920), (376, 182030), (436, 156980), (470, 145624), (545, 125584), (668, 102460), (752, 91015), (835, 81968), (872, 78490), (940, 72812), (1090, 62792), (1336, 51230), (1670, 40984), (1744, 39245), (1880, 36406), (2180, 31396), (2672, 25615), (3340, 20492), (3760, 18203), (4360, 15698), (5123, 13360), (6680, 10246), (7849, 8720)]