28978030

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:349

約数の個数: 48

約数和(自身を含む): 57116736

約数和(自身を除く): 28138706

約数列:

[1, 2, 5, 10, 17, 34, 37, 74, 85, 170, 185, 271, 289, 370, 542, 578, 629, 1258, 1355, 1445, 2710, 2890, 3145, 4607, 6290, 9214, 10027, 10693, 20054, 21386, 23035, 46070, 50135, 53465, 78319, 100270, 106930, 156638, 170459, 340918, 391595, 783190, 852295, 1704590, 2897803, 5795606, 14489015, 28978030]

約数ペア:

[(1, 28978030), (2, 14489015), (5, 5795606), (10, 2897803), (17, 1704590), (34, 852295), (37, 783190), (74, 391595), (85, 340918), (170, 170459), (185, 156638), (271, 106930), (289, 100270), (370, 78319), (542, 53465), (578, 50135), (629, 46070), (1258, 23035), (1355, 21386), (1445, 20054), (2710, 10693), (2890, 10027), (3145, 9214), (4607, 6290)]