51372580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 137894400

約数和(自身を除く): 86521820

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 49, 62, 70, 76, 89, 95, 98, 124, 133, 140, 155, 178, 190, 196, 217, 245, 266, 310, 356, 380, 434, 445, 490, 532, 589, 620, 623, 665, 868, 890, 931, 980, 1085, 1178, 1246, 1330, 1519, 1691, 1780, 1862, 2170, 2356, 2492, 2660, 2759, 2945, 3038, 3115, 3382, 3724, 4123, 4340, 4361, 4655, 5518, 5890, 6076, 6230, 6764, 7595, 8246, 8455, 8722, 9310, 11036, 11780, 11837, 12460, 13795, 15190, 16492, 16910, 17444, 18620, 19313, 20615, 21805, 23674, 27590, 28861, 30380, 33820, 38626, 41230, 43610, 47348, 52421, 55180, 57722, 59185, 77252, 82460, 82859, 87220, 96565, 104842, 115444, 118370, 135191, 144305, 165718, 193130, 209684, 236740, 262105, 270382, 288610, 331436, 366947, 386260, 414295, 524210, 540764, 577220, 675955, 733894, 828590, 1048420, 1351910, 1467788, 1657180, 1834735, 2568629, 2703820, 3669470, 5137258, 7338940, 10274516, 12843145, 25686290, 51372580]

約数ペア:

[(1, 51372580), (2, 25686290), (4, 12843145), (5, 10274516), (7, 7338940), (10, 5137258), (14, 3669470), (19, 2703820), (20, 2568629), (28, 1834735), (31, 1657180), (35, 1467788), (38, 1351910), (49, 1048420), (62, 828590), (70, 733894), (76, 675955), (89, 577220), (95, 540764), (98, 524210), (124, 414295), (133, 386260), (140, 366947), (155, 331436), (178, 288610), (190, 270382), (196, 262105), (217, 236740), (245, 209684), (266, 193130), (310, 165718), (356, 144305), (380, 135191), (434, 118370), (445, 115444), (490, 104842), (532, 96565), (589, 87220), (620, 82859), (623, 82460), (665, 77252), (868, 59185), (890, 57722), (931, 55180), (980, 52421), (1085, 47348), (1178, 43610), (1246, 41230), (1330, 38626), (1519, 33820), (1691, 30380), (1780, 28861), (1862, 27590), (2170, 23674), (2356, 21805), (2492, 20615), (2660, 19313), (2759, 18620), (2945, 17444), (3038, 16910), (3115, 16492), (3382, 15190), (3724, 13795), (4123, 12460), (4340, 11837), (4361, 11780), (4655, 11036), (5518, 9310), (5890, 8722), (6076, 8455), (6230, 8246), (6764, 7595)]