20123077680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{213349}}^1$

素因数の和:213499

約数の個数: 120

約数和(自身を含む): 68096199600

約数和(自身を除く): 47973121920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 131, 144, 180, 240, 262, 360, 393, 524, 655, 720, 786, 1048, 1179, 1310, 1572, 1965, 2096, 2358, 2620, 3144, 3930, 4716, 5240, 5895, 6288, 7860, 9432, 10480, 11790, 15720, 18864, 23580, 31440, 47160, 94320, 213349, 426698, 640047, 853396, 1066745, 1280094, 1706792, 1920141, 2133490, 2560188, 3200235, 3413584, 3840282, 4266980, 5120376, 6400470, 7680564, 8533960, 9600705, 10240752, 12800940, 15361128, 17067920, 19201410, 25601880, 27948719, 30722256, 38402820, 51203760, 55897438, 76805640, 83846157, 111794876, 139743595, 153611280, 167692314, 223589752, 251538471, 279487190, 335384628, 419230785, 447179504, 503076942, 558974380, 670769256, 838461570, 1006153884, 1117948760, 1257692355, 1341538512, 1676923140, 2012307768, 2235897520, 2515384710, 3353846280, 4024615536, 5030769420, 6707692560, 10061538840, 20123077680]

約数ペア:

[(1, 20123077680), (2, 10061538840), (3, 6707692560), (4, 5030769420), (5, 4024615536), (6, 3353846280), (8, 2515384710), (9, 2235897520), (10, 2012307768), (12, 1676923140), (15, 1341538512), (16, 1257692355), (18, 1117948760), (20, 1006153884), (24, 838461570), (30, 670769256), (36, 558974380), (40, 503076942), (45, 447179504), (48, 419230785), (60, 335384628), (72, 279487190), (80, 251538471), (90, 223589752), (120, 167692314), (131, 153611280), (144, 139743595), (180, 111794876), (240, 83846157), (262, 76805640), (360, 55897438), (393, 51203760), (524, 38402820), (655, 30722256), (720, 27948719), (786, 25601880), (1048, 19201410), (1179, 17067920), (1310, 15361128), (1572, 12800940), (1965, 10240752), (2096, 9600705), (2358, 8533960), (2620, 7680564), (3144, 6400470), (3930, 5120376), (4716, 4266980), (5240, 3840282), (5895, 3413584), (6288, 3200235), (7860, 2560188), (9432, 2133490), (10480, 1920141), (11790, 1706792), (15720, 1280094), (18864, 1066745), (23580, 853396), (31440, 640047), (47160, 426698), (94320, 213349)]