77978760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4139}}^1$

素因数の和:4310

約数の個数: 64

約数和(自身を含む): 235483200

約数和(自身を除く): 157504440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 3140, 3768, 4139, 4710, 6280, 8278, 9420, 12417, 16556, 18840, 20695, 24834, 33112, 41390, 49668, 62085, 82780, 99336, 124170, 165560, 248340, 496680, 649823, 1299646, 1949469, 2599292, 3249115, 3898938, 5198584, 6498230, 7797876, 9747345, 12996460, 15595752, 19494690, 25992920, 38989380, 77978760]

約数ペア:

[(1, 77978760), (2, 38989380), (3, 25992920), (4, 19494690), (5, 15595752), (6, 12996460), (8, 9747345), (10, 7797876), (12, 6498230), (15, 5198584), (20, 3898938), (24, 3249115), (30, 2599292), (40, 1949469), (60, 1299646), (120, 649823), (157, 496680), (314, 248340), (471, 165560), (628, 124170), (785, 99336), (942, 82780), (1256, 62085), (1570, 49668), (1884, 41390), (2355, 33112), (3140, 24834), (3768, 20695), (4139, 18840), (4710, 16556), (6280, 12417), (8278, 9420)]