20576520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{937}}^1$

素因数の和:1015

約数の個数: 96

約数和(自身を含む): 68042520

約数和(自身を除く): 47466000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 915, 937, 1098, 1220, 1464, 1830, 1874, 2196, 2440, 2745, 2811, 3660, 3748, 4392, 4685, 5490, 5622, 7320, 7496, 8433, 9370, 10980, 11244, 14055, 16866, 18740, 21960, 22488, 28110, 33732, 37480, 42165, 56220, 57157, 67464, 84330, 112440, 114314, 168660, 171471, 228628, 285785, 337320, 342942, 457256, 514413, 571570, 685884, 857355, 1028826, 1143140, 1371768, 1714710, 2057652, 2286280, 2572065, 3429420, 4115304, 5144130, 6858840, 10288260, 20576520]

約数ペア:

[(1, 20576520), (2, 10288260), (3, 6858840), (4, 5144130), (5, 4115304), (6, 3429420), (8, 2572065), (9, 2286280), (10, 2057652), (12, 1714710), (15, 1371768), (18, 1143140), (20, 1028826), (24, 857355), (30, 685884), (36, 571570), (40, 514413), (45, 457256), (60, 342942), (61, 337320), (72, 285785), (90, 228628), (120, 171471), (122, 168660), (180, 114314), (183, 112440), (244, 84330), (305, 67464), (360, 57157), (366, 56220), (488, 42165), (549, 37480), (610, 33732), (732, 28110), (915, 22488), (937, 21960), (1098, 18740), (1220, 16866), (1464, 14055), (1830, 11244), (1874, 10980), (2196, 9370), (2440, 8433), (2745, 7496), (2811, 7320), (3660, 5622), (3748, 5490), (4392, 4685)]