74973780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:558

約数の個数: 144

約数和(自身を含む): 262254720

約数和(自身を除く): 187280940

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 157, 180, 210, 252, 314, 315, 379, 420, 471, 628, 630, 758, 785, 942, 1099, 1137, 1260, 1413, 1516, 1570, 1884, 1895, 2198, 2274, 2355, 2653, 2826, 3140, 3297, 3411, 3790, 4396, 4548, 4710, 5306, 5495, 5652, 5685, 6594, 6822, 7065, 7580, 7959, 9420, 9891, 10612, 10990, 11370, 13188, 13265, 13644, 14130, 15918, 16485, 17055, 19782, 21980, 22740, 23877, 26530, 28260, 31836, 32970, 34110, 39564, 39795, 47754, 49455, 53060, 59503, 65940, 68220, 79590, 95508, 98910, 119006, 119385, 159180, 178509, 197820, 238012, 238770, 297515, 357018, 416521, 477540, 535527, 595030, 714036, 833042, 892545, 1071054, 1190060, 1249563, 1666084, 1785090, 2082605, 2142108, 2499126, 2677635, 3570180, 3748689, 4165210, 4998252, 5355270, 6247815, 7497378, 8330420, 10710540, 12495630, 14994756, 18743445, 24991260, 37486890, 74973780]

約数ペア:

[(1, 74973780), (2, 37486890), (3, 24991260), (4, 18743445), (5, 14994756), (6, 12495630), (7, 10710540), (9, 8330420), (10, 7497378), (12, 6247815), (14, 5355270), (15, 4998252), (18, 4165210), (20, 3748689), (21, 3570180), (28, 2677635), (30, 2499126), (35, 2142108), (36, 2082605), (42, 1785090), (45, 1666084), (60, 1249563), (63, 1190060), (70, 1071054), (84, 892545), (90, 833042), (105, 714036), (126, 595030), (140, 535527), (157, 477540), (180, 416521), (210, 357018), (252, 297515), (314, 238770), (315, 238012), (379, 197820), (420, 178509), (471, 159180), (628, 119385), (630, 119006), (758, 98910), (785, 95508), (942, 79590), (1099, 68220), (1137, 65940), (1260, 59503), (1413, 53060), (1516, 49455), (1570, 47754), (1884, 39795), (1895, 39564), (2198, 34110), (2274, 32970), (2355, 31836), (2653, 28260), (2826, 26530), (3140, 23877), (3297, 22740), (3411, 21980), (3790, 19782), (4396, 17055), (4548, 16485), (4710, 15918), (5306, 14130), (5495, 13644), (5652, 13265), (5685, 13188), (6594, 11370), (6822, 10990), (7065, 10612), (7580, 9891), (7959, 9420)]