20293881520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{5569}}^1$

素因数の和:5735

約数の個数: 160

約数和(自身を含む): 53259716160

約数和(自身を除く): 32965834640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 101, 110, 164, 176, 202, 205, 220, 328, 404, 410, 440, 451, 505, 656, 808, 820, 880, 902, 1010, 1111, 1616, 1640, 1804, 2020, 2222, 2255, 3280, 3608, 4040, 4141, 4444, 4510, 5555, 5569, 7216, 8080, 8282, 8888, 9020, 11110, 11138, 16564, 17776, 18040, 20705, 22220, 22276, 27845, 33128, 36080, 41410, 44440, 44552, 45551, 55690, 61259, 66256, 82820, 88880, 89104, 91102, 111380, 122518, 165640, 182204, 222760, 227755, 228329, 245036, 306295, 331280, 364408, 445520, 455510, 456658, 490072, 562469, 612590, 728816, 911020, 913316, 980144, 1124938, 1141645, 1225180, 1822040, 1826632, 2249876, 2283290, 2450360, 2511619, 2812345, 3644080, 3653264, 4499752, 4566580, 4900720, 5023238, 5624690, 6187159, 8999504, 9133160, 10046476, 11249380, 12374318, 12558095, 18266320, 20092952, 22498760, 23061229, 24748636, 25116190, 30935795, 40185904, 44997520, 46122458, 49497272, 50232380, 61871590, 92244916, 98994544, 100464760, 115306145, 123743180, 184489832, 200929520, 230612290, 247486360, 253673519, 368979664, 461224580, 494972720, 507347038, 922449160, 1014694076, 1268367595, 1844898320, 2029388152, 2536735190, 4058776304, 5073470380, 10146940760, 20293881520]

約数ペア:

[(1, 20293881520), (2, 10146940760), (4, 5073470380), (5, 4058776304), (8, 2536735190), (10, 2029388152), (11, 1844898320), (16, 1268367595), (20, 1014694076), (22, 922449160), (40, 507347038), (41, 494972720), (44, 461224580), (55, 368979664), (80, 253673519), (82, 247486360), (88, 230612290), (101, 200929520), (110, 184489832), (164, 123743180), (176, 115306145), (202, 100464760), (205, 98994544), (220, 92244916), (328, 61871590), (404, 50232380), (410, 49497272), (440, 46122458), (451, 44997520), (505, 40185904), (656, 30935795), (808, 25116190), (820, 24748636), (880, 23061229), (902, 22498760), (1010, 20092952), (1111, 18266320), (1616, 12558095), (1640, 12374318), (1804, 11249380), (2020, 10046476), (2222, 9133160), (2255, 8999504), (3280, 6187159), (3608, 5624690), (4040, 5023238), (4141, 4900720), (4444, 4566580), (4510, 4499752), (5555, 3653264), (5569, 3644080), (7216, 2812345), (8080, 2511619), (8282, 2450360), (8888, 2283290), (9020, 2249876), (11110, 1826632), (11138, 1822040), (16564, 1225180), (17776, 1141645), (18040, 1124938), (20705, 980144), (22220, 913316), (22276, 911020), (27845, 728816), (33128, 612590), (36080, 562469), (41410, 490072), (44440, 456658), (44552, 455510), (45551, 445520), (55690, 364408), (61259, 331280), (66256, 306295), (82820, 245036), (88880, 228329), (89104, 227755), (91102, 222760), (111380, 182204), (122518, 165640)]