21792240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:106

約数の個数: 240

約数和(自身を含む): 81244800

約数和(自身を除く): 59452560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 59, 60, 72, 76, 80, 81, 90, 95, 108, 114, 118, 120, 135, 144, 152, 162, 171, 177, 180, 190, 216, 228, 236, 240, 243, 270, 285, 295, 304, 324, 342, 354, 360, 380, 405, 432, 456, 472, 486, 513, 531, 540, 570, 590, 648, 684, 708, 720, 760, 810, 855, 885, 912, 944, 972, 1026, 1062, 1080, 1121, 1140, 1180, 1215, 1296, 1368, 1416, 1520, 1539, 1593, 1620, 1710, 1770, 1944, 2052, 2124, 2160, 2242, 2280, 2360, 2430, 2565, 2655, 2736, 2832, 3078, 3186, 3240, 3363, 3420, 3540, 3888, 4104, 4248, 4484, 4560, 4617, 4720, 4779, 4860, 5130, 5310, 5605, 6156, 6372, 6480, 6726, 6840, 7080, 7695, 7965, 8208, 8496, 8968, 9234, 9558, 9720, 10089, 10260, 10620, 11210, 12312, 12744, 13452, 13680, 14160, 14337, 15390, 15930, 16815, 17936, 18468, 19116, 19440, 20178, 20520, 21240, 22420, 23085, 23895, 24624, 25488, 26904, 28674, 30267, 30780, 31860, 33630, 36936, 38232, 40356, 41040, 42480, 44840, 46170, 47790, 50445, 53808, 57348, 60534, 61560, 63720, 67260, 71685, 73872, 76464, 80712, 89680, 90801, 92340, 95580, 100890, 114696, 121068, 123120, 127440, 134520, 143370, 151335, 161424, 181602, 184680, 191160, 201780, 229392, 242136, 269040, 272403, 286740, 302670, 363204, 369360, 382320, 403560, 454005, 484272, 544806, 573480, 605340, 726408, 807120, 908010, 1089612, 1146960, 1210680, 1362015, 1452816, 1816020, 2179224, 2421360, 2724030, 3632040, 4358448, 5448060, 7264080, 10896120, 21792240]

約数ペア:

[(1, 21792240), (2, 10896120), (3, 7264080), (4, 5448060), (5, 4358448), (6, 3632040), (8, 2724030), (9, 2421360), (10, 2179224), (12, 1816020), (15, 1452816), (16, 1362015), (18, 1210680), (19, 1146960), (20, 1089612), (24, 908010), (27, 807120), (30, 726408), (36, 605340), (38, 573480), (40, 544806), (45, 484272), (48, 454005), (54, 403560), (57, 382320), (59, 369360), (60, 363204), (72, 302670), (76, 286740), (80, 272403), (81, 269040), (90, 242136), (95, 229392), (108, 201780), (114, 191160), (118, 184680), (120, 181602), (135, 161424), (144, 151335), (152, 143370), (162, 134520), (171, 127440), (177, 123120), (180, 121068), (190, 114696), (216, 100890), (228, 95580), (236, 92340), (240, 90801), (243, 89680), (270, 80712), (285, 76464), (295, 73872), (304, 71685), (324, 67260), (342, 63720), (354, 61560), (360, 60534), (380, 57348), (405, 53808), (432, 50445), (456, 47790), (472, 46170), (486, 44840), (513, 42480), (531, 41040), (540, 40356), (570, 38232), (590, 36936), (648, 33630), (684, 31860), (708, 30780), (720, 30267), (760, 28674), (810, 26904), (855, 25488), (885, 24624), (912, 23895), (944, 23085), (972, 22420), (1026, 21240), (1062, 20520), (1080, 20178), (1121, 19440), (1140, 19116), (1180, 18468), (1215, 17936), (1296, 16815), (1368, 15930), (1416, 15390), (1520, 14337), (1539, 14160), (1593, 13680), (1620, 13452), (1710, 12744), (1770, 12312), (1944, 11210), (2052, 10620), (2124, 10260), (2160, 10089), (2242, 9720), (2280, 9558), (2360, 9234), (2430, 8968), (2565, 8496), (2655, 8208), (2736, 7965), (2832, 7695), (3078, 7080), (3186, 6840), (3240, 6726), (3363, 6480), (3420, 6372), (3540, 6156), (3888, 5605), (4104, 5310), (4248, 5130), (4484, 4860), (4560, 4779), (4617, 4720)]