74478740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^2$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 185934336

約数和(自身を除く): 111455596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 131, 140, 155, 217, 262, 310, 434, 524, 620, 655, 868, 917, 1085, 1310, 1834, 2170, 2620, 3668, 4061, 4340, 4585, 8122, 9170, 16244, 17161, 18340, 20305, 28427, 34322, 40610, 56854, 68644, 81220, 85805, 113708, 120127, 142135, 171610, 240254, 284270, 343220, 480508, 531991, 568540, 600635, 1063982, 1201270, 2127964, 2402540, 2659955, 3723937, 5319910, 7447874, 10639820, 14895748, 18619685, 37239370, 74478740]

約数ペア:

[(1, 74478740), (2, 37239370), (4, 18619685), (5, 14895748), (7, 10639820), (10, 7447874), (14, 5319910), (20, 3723937), (28, 2659955), (31, 2402540), (35, 2127964), (62, 1201270), (70, 1063982), (124, 600635), (131, 568540), (140, 531991), (155, 480508), (217, 343220), (262, 284270), (310, 240254), (434, 171610), (524, 142135), (620, 120127), (655, 113708), (868, 85805), (917, 81220), (1085, 68644), (1310, 56854), (1834, 40610), (2170, 34322), (2620, 28427), (3668, 20305), (4061, 18340), (4340, 17161), (4585, 16244), (8122, 9170)]