781860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 2229696

約数和(自身を除く): 1447836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 83, 157, 166, 249, 314, 332, 415, 471, 498, 628, 785, 830, 942, 996, 1245, 1570, 1660, 1884, 2355, 2490, 3140, 4710, 4980, 9420, 13031, 26062, 39093, 52124, 65155, 78186, 130310, 156372, 195465, 260620, 390930, 781860]

約数ペア:

[(1, 781860), (2, 390930), (3, 260620), (4, 195465), (5, 156372), (6, 130310), (10, 78186), (12, 65155), (15, 52124), (20, 39093), (30, 26062), (60, 13031), (83, 9420), (157, 4980), (166, 4710), (249, 3140), (314, 2490), (332, 2355), (415, 1884), (471, 1660), (498, 1570), (628, 1245), (785, 996), (830, 942)]