320414980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{20051}}^1$

素因数の和:20124

約数の個数: 48

約数和(自身を含む): 727646976

約数和(自身を除く): 407231996

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 3196, 3995, 7990, 15980, 20051, 40102, 80204, 100255, 200510, 340867, 401020, 681734, 942397, 1363468, 1704335, 1884794, 3408670, 3769588, 4711985, 6817340, 9423970, 16020749, 18847940, 32041498, 64082996, 80103745, 160207490, 320414980]

約数ペア:

[(1, 320414980), (2, 160207490), (4, 80103745), (5, 64082996), (10, 32041498), (17, 18847940), (20, 16020749), (34, 9423970), (47, 6817340), (68, 4711985), (85, 3769588), (94, 3408670), (170, 1884794), (188, 1704335), (235, 1363468), (340, 942397), (470, 681734), (799, 401020), (940, 340867), (1598, 200510), (3196, 100255), (3995, 80204), (7990, 40102), (15980, 20051)]