51505420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 111484800

約数和(自身を除く): 59979380

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 157, 188, 235, 314, 349, 470, 628, 698, 785, 940, 1396, 1570, 1745, 3140, 3490, 6980, 7379, 14758, 16403, 29516, 32806, 36895, 54793, 65612, 73790, 82015, 109586, 147580, 164030, 219172, 273965, 328060, 547930, 1095860, 2575271, 5150542, 10301084, 12876355, 25752710, 51505420]

約数ペア:

[(1, 51505420), (2, 25752710), (4, 12876355), (5, 10301084), (10, 5150542), (20, 2575271), (47, 1095860), (94, 547930), (157, 328060), (188, 273965), (235, 219172), (314, 164030), (349, 147580), (470, 109586), (628, 82015), (698, 73790), (785, 65612), (940, 54793), (1396, 36895), (1570, 32806), (1745, 29516), (3140, 16403), (3490, 14758), (6980, 7379)]