31905540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1129}}^1$

素因数の和:1301

約数の個数: 72

約数和(自身を含む): 97482840

約数和(自身を除く): 65577300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1129, 1413, 1570, 1884, 2258, 2355, 2826, 3140, 3387, 4516, 4710, 5645, 5652, 6774, 7065, 9420, 10161, 11290, 13548, 14130, 16935, 20322, 22580, 28260, 33870, 40644, 50805, 67740, 101610, 177253, 203220, 354506, 531759, 709012, 886265, 1063518, 1595277, 1772530, 2127036, 2658795, 3190554, 3545060, 5317590, 6381108, 7976385, 10635180, 15952770, 31905540]

約数ペア:

[(1, 31905540), (2, 15952770), (3, 10635180), (4, 7976385), (5, 6381108), (6, 5317590), (9, 3545060), (10, 3190554), (12, 2658795), (15, 2127036), (18, 1772530), (20, 1595277), (30, 1063518), (36, 886265), (45, 709012), (60, 531759), (90, 354506), (157, 203220), (180, 177253), (314, 101610), (471, 67740), (628, 50805), (785, 40644), (942, 33870), (1129, 28260), (1413, 22580), (1570, 20322), (1884, 16935), (2258, 14130), (2355, 13548), (2826, 11290), (3140, 10161), (3387, 9420), (4516, 7065), (4710, 6774), (5645, 5652)]