620913920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:273

約数の個数: 216

約数和(自身を含む): 1728978720

約数和(自身を除く): 1108064800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 121, 128, 152, 160, 176, 190, 209, 211, 220, 242, 256, 304, 320, 352, 380, 418, 422, 440, 484, 605, 608, 640, 704, 760, 836, 844, 880, 968, 1045, 1055, 1210, 1216, 1280, 1408, 1520, 1672, 1688, 1760, 1936, 2090, 2110, 2299, 2321, 2420, 2432, 2816, 3040, 3344, 3376, 3520, 3872, 4009, 4180, 4220, 4598, 4642, 4840, 4864, 6080, 6688, 6752, 7040, 7744, 8018, 8360, 8440, 9196, 9284, 9680, 11495, 11605, 12160, 13376, 13504, 14080, 15488, 16036, 16720, 16880, 18392, 18568, 19360, 20045, 22990, 23210, 24320, 25531, 26752, 27008, 30976, 32072, 33440, 33760, 36784, 37136, 38720, 40090, 44099, 45980, 46420, 51062, 53504, 54016, 64144, 66880, 67520, 73568, 74272, 77440, 80180, 88198, 91960, 92840, 102124, 127655, 128288, 133760, 135040, 147136, 148544, 154880, 160360, 176396, 183920, 185680, 204248, 220495, 255310, 256576, 267520, 270080, 294272, 297088, 320720, 352792, 367840, 371360, 408496, 440990, 485089, 510620, 513152, 588544, 594176, 641440, 705584, 735680, 742720, 816992, 881980, 970178, 1021240, 1026304, 1282880, 1411168, 1471360, 1485440, 1633984, 1763960, 1940356, 2042480, 2425445, 2565760, 2822336, 2942720, 2970880, 3267968, 3527920, 3880712, 4084960, 4850890, 5131520, 5644672, 6535936, 7055840, 7761424, 8169920, 9701780, 11289344, 14111680, 15522848, 16339840, 19403560, 28223360, 31045696, 32679680, 38807120, 56446720, 62091392, 77614240, 124182784, 155228480, 310456960, 620913920]

約数ペア:

[(1, 620913920), (2, 310456960), (4, 155228480), (5, 124182784), (8, 77614240), (10, 62091392), (11, 56446720), (16, 38807120), (19, 32679680), (20, 31045696), (22, 28223360), (32, 19403560), (38, 16339840), (40, 15522848), (44, 14111680), (55, 11289344), (64, 9701780), (76, 8169920), (80, 7761424), (88, 7055840), (95, 6535936), (110, 5644672), (121, 5131520), (128, 4850890), (152, 4084960), (160, 3880712), (176, 3527920), (190, 3267968), (209, 2970880), (211, 2942720), (220, 2822336), (242, 2565760), (256, 2425445), (304, 2042480), (320, 1940356), (352, 1763960), (380, 1633984), (418, 1485440), (422, 1471360), (440, 1411168), (484, 1282880), (605, 1026304), (608, 1021240), (640, 970178), (704, 881980), (760, 816992), (836, 742720), (844, 735680), (880, 705584), (968, 641440), (1045, 594176), (1055, 588544), (1210, 513152), (1216, 510620), (1280, 485089), (1408, 440990), (1520, 408496), (1672, 371360), (1688, 367840), (1760, 352792), (1936, 320720), (2090, 297088), (2110, 294272), (2299, 270080), (2321, 267520), (2420, 256576), (2432, 255310), (2816, 220495), (3040, 204248), (3344, 185680), (3376, 183920), (3520, 176396), (3872, 160360), (4009, 154880), (4180, 148544), (4220, 147136), (4598, 135040), (4642, 133760), (4840, 128288), (4864, 127655), (6080, 102124), (6688, 92840), (6752, 91960), (7040, 88198), (7744, 80180), (8018, 77440), (8360, 74272), (8440, 73568), (9196, 67520), (9284, 66880), (9680, 64144), (11495, 54016), (11605, 53504), (12160, 51062), (13376, 46420), (13504, 45980), (14080, 44099), (15488, 40090), (16036, 38720), (16720, 37136), (16880, 36784), (18392, 33760), (18568, 33440), (19360, 32072), (20045, 30976), (22990, 27008), (23210, 26752), (24320, 25531)]