77881300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 206875648

約数和(自身を除く): 128994348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 37, 50, 62, 70, 74, 97, 100, 124, 140, 148, 155, 175, 185, 194, 217, 259, 310, 350, 370, 388, 434, 485, 518, 620, 679, 700, 740, 775, 868, 925, 970, 1036, 1085, 1147, 1295, 1358, 1550, 1850, 1940, 2170, 2294, 2425, 2590, 2716, 3007, 3100, 3395, 3589, 3700, 4340, 4588, 4850, 5180, 5425, 5735, 6014, 6475, 6790, 7178, 8029, 9700, 10850, 11470, 12028, 12950, 13580, 14356, 15035, 16058, 16975, 17945, 21049, 21700, 22940, 25123, 25900, 28675, 30070, 32116, 33950, 35890, 40145, 42098, 50246, 57350, 60140, 67900, 71780, 75175, 80290, 84196, 89725, 100492, 105245, 111259, 114700, 125615, 150350, 160580, 179450, 200725, 210490, 222518, 251230, 300700, 358900, 401450, 420980, 445036, 502460, 526225, 556295, 628075, 778813, 802900, 1052450, 1112590, 1256150, 1557626, 2104900, 2225180, 2512300, 2781475, 3115252, 3894065, 5562950, 7788130, 11125900, 15576260, 19470325, 38940650, 77881300]

約数ペア:

[(1, 77881300), (2, 38940650), (4, 19470325), (5, 15576260), (7, 11125900), (10, 7788130), (14, 5562950), (20, 3894065), (25, 3115252), (28, 2781475), (31, 2512300), (35, 2225180), (37, 2104900), (50, 1557626), (62, 1256150), (70, 1112590), (74, 1052450), (97, 802900), (100, 778813), (124, 628075), (140, 556295), (148, 526225), (155, 502460), (175, 445036), (185, 420980), (194, 401450), (217, 358900), (259, 300700), (310, 251230), (350, 222518), (370, 210490), (388, 200725), (434, 179450), (485, 160580), (518, 150350), (620, 125615), (679, 114700), (700, 111259), (740, 105245), (775, 100492), (868, 89725), (925, 84196), (970, 80290), (1036, 75175), (1085, 71780), (1147, 67900), (1295, 60140), (1358, 57350), (1550, 50246), (1850, 42098), (1940, 40145), (2170, 35890), (2294, 33950), (2425, 32116), (2590, 30070), (2716, 28675), (3007, 25900), (3100, 25123), (3395, 22940), (3589, 21700), (3700, 21049), (4340, 17945), (4588, 16975), (4850, 16058), (5180, 15035), (5425, 14356), (5735, 13580), (6014, 12950), (6475, 12028), (6790, 11470), (7178, 10850), (8029, 9700)]