61979620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{433}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 138459888

約数和(自身を除く): 76480268

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 421, 433, 842, 866, 1684, 1732, 2105, 2165, 4210, 4330, 7157, 7361, 8420, 8660, 14314, 14722, 28628, 29444, 35785, 36805, 71570, 73610, 143140, 147220, 182293, 364586, 729172, 911465, 1822930, 3098981, 3645860, 6197962, 12395924, 15494905, 30989810, 61979620]

約数ペア:

[(1, 61979620), (2, 30989810), (4, 15494905), (5, 12395924), (10, 6197962), (17, 3645860), (20, 3098981), (34, 1822930), (68, 911465), (85, 729172), (170, 364586), (340, 182293), (421, 147220), (433, 143140), (842, 73610), (866, 71570), (1684, 36805), (1732, 35785), (2105, 29444), (2165, 28628), (4210, 14722), (4330, 14314), (7157, 8660), (7361, 8420)]