19810368960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{4789}}^1$

素因数の和:4979

約数の個数: 224

約数和(自身を含む): 65407641600

約数和(自身を除く): 45597272640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 139, 155, 160, 186, 192, 240, 248, 278, 310, 320, 372, 417, 465, 480, 496, 556, 620, 695, 744, 834, 930, 960, 992, 1112, 1240, 1390, 1488, 1668, 1860, 1984, 2085, 2224, 2480, 2780, 2976, 3336, 3720, 4170, 4309, 4448, 4789, 4960, 5560, 5952, 6672, 7440, 8340, 8618, 8896, 9578, 9920, 11120, 12927, 13344, 14367, 14880, 16680, 17236, 19156, 21545, 22240, 23945, 25854, 26688, 28734, 29760, 33360, 34472, 38312, 43090, 44480, 47890, 51708, 57468, 64635, 66720, 68944, 71835, 76624, 86180, 95780, 103416, 114936, 129270, 133440, 137888, 143670, 148459, 153248, 172360, 191560, 206832, 229872, 258540, 275776, 287340, 296918, 306496, 344720, 383120, 413664, 445377, 459744, 517080, 574680, 593836, 665671, 689440, 742295, 766240, 827328, 890754, 919488, 1034160, 1149360, 1187672, 1331342, 1378880, 1484590, 1532480, 1781508, 1997013, 2068320, 2226885, 2298720, 2375344, 2662684, 2969180, 3328355, 3563016, 3994026, 4136640, 4453770, 4597440, 4750688, 5325368, 5938360, 6656710, 7126032, 7988052, 8907540, 9501376, 9985065, 10650736, 11876720, 13313420, 14252064, 15976104, 17815080, 19970130, 20635801, 21301472, 23753440, 26626840, 28504128, 31952208, 35630160, 39940260, 41271602, 42602944, 47506880, 53253680, 61907403, 63904416, 71260320, 79880520, 82543204, 103179005, 106507360, 123814806, 127808832, 142520640, 159761040, 165086408, 206358010, 213014720, 247629612, 309537015, 319522080, 330172816, 412716020, 495259224, 619074030, 639044160, 660345632, 825432040, 990518448, 1238148060, 1320691264, 1650864080, 1981036896, 2476296120, 3301728160, 3962073792, 4952592240, 6603456320, 9905184480, 19810368960]

約数ペア:

[(1, 19810368960), (2, 9905184480), (3, 6603456320), (4, 4952592240), (5, 3962073792), (6, 3301728160), (8, 2476296120), (10, 1981036896), (12, 1650864080), (15, 1320691264), (16, 1238148060), (20, 990518448), (24, 825432040), (30, 660345632), (31, 639044160), (32, 619074030), (40, 495259224), (48, 412716020), (60, 330172816), (62, 319522080), (64, 309537015), (80, 247629612), (93, 213014720), (96, 206358010), (120, 165086408), (124, 159761040), (139, 142520640), (155, 127808832), (160, 123814806), (186, 106507360), (192, 103179005), (240, 82543204), (248, 79880520), (278, 71260320), (310, 63904416), (320, 61907403), (372, 53253680), (417, 47506880), (465, 42602944), (480, 41271602), (496, 39940260), (556, 35630160), (620, 31952208), (695, 28504128), (744, 26626840), (834, 23753440), (930, 21301472), (960, 20635801), (992, 19970130), (1112, 17815080), (1240, 15976104), (1390, 14252064), (1488, 13313420), (1668, 11876720), (1860, 10650736), (1984, 9985065), (2085, 9501376), (2224, 8907540), (2480, 7988052), (2780, 7126032), (2976, 6656710), (3336, 5938360), (3720, 5325368), (4170, 4750688), (4309, 4597440), (4448, 4453770), (4789, 4136640), (4960, 3994026), (5560, 3563016), (5952, 3328355), (6672, 2969180), (7440, 2662684), (8340, 2375344), (8618, 2298720), (8896, 2226885), (9578, 2068320), (9920, 1997013), (11120, 1781508), (12927, 1532480), (13344, 1484590), (14367, 1378880), (14880, 1331342), (16680, 1187672), (17236, 1149360), (19156, 1034160), (21545, 919488), (22240, 890754), (23945, 827328), (25854, 766240), (26688, 742295), (28734, 689440), (29760, 665671), (33360, 593836), (34472, 574680), (38312, 517080), (43090, 459744), (44480, 445377), (47890, 413664), (51708, 383120), (57468, 344720), (64635, 306496), (66720, 296918), (68944, 287340), (71835, 275776), (76624, 258540), (86180, 229872), (95780, 206832), (103416, 191560), (114936, 172360), (129270, 153248), (133440, 148459), (137888, 143670)]