7825253120

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{991}}^1$

素因数の和:1242

約数の個数: 144

約数和(自身を含む): 19465420800

約数和(自身を除く): 11640167680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 199, 248, 256, 310, 320, 398, 496, 620, 640, 796, 991, 992, 995, 1240, 1280, 1592, 1982, 1984, 1990, 2480, 3184, 3964, 3968, 3980, 4955, 4960, 6169, 6368, 7928, 7936, 7960, 9910, 9920, 12338, 12736, 15856, 15920, 19820, 19840, 24676, 25472, 30721, 30845, 31712, 31840, 39640, 39680, 49352, 50944, 61442, 61690, 63424, 63680, 79280, 98704, 122884, 123380, 126848, 127360, 153605, 158560, 197209, 197408, 245768, 246760, 253696, 254720, 307210, 317120, 394418, 394816, 491536, 493520, 614420, 634240, 788836, 789632, 983072, 986045, 987040, 1228840, 1268480, 1577672, 1579264, 1966144, 1972090, 1974080, 2457680, 3155344, 3932288, 3944180, 3948160, 4915360, 6113479, 6310688, 7864576, 7888360, 7896320, 9830720, 12226958, 12621376, 15776720, 19661440, 24453916, 25242752, 30567395, 31553440, 39322880, 48907832, 50485504, 61134790, 63106880, 97815664, 122269580, 126213760, 195631328, 244539160, 252427520, 391262656, 489078320, 782525312, 978156640, 1565050624, 1956313280, 3912626560, 7825253120]

約数ペア:

[(1, 7825253120), (2, 3912626560), (4, 1956313280), (5, 1565050624), (8, 978156640), (10, 782525312), (16, 489078320), (20, 391262656), (31, 252427520), (32, 244539160), (40, 195631328), (62, 126213760), (64, 122269580), (80, 97815664), (124, 63106880), (128, 61134790), (155, 50485504), (160, 48907832), (199, 39322880), (248, 31553440), (256, 30567395), (310, 25242752), (320, 24453916), (398, 19661440), (496, 15776720), (620, 12621376), (640, 12226958), (796, 9830720), (991, 7896320), (992, 7888360), (995, 7864576), (1240, 6310688), (1280, 6113479), (1592, 4915360), (1982, 3948160), (1984, 3944180), (1990, 3932288), (2480, 3155344), (3184, 2457680), (3964, 1974080), (3968, 1972090), (3980, 1966144), (4955, 1579264), (4960, 1577672), (6169, 1268480), (6368, 1228840), (7928, 987040), (7936, 986045), (7960, 983072), (9910, 789632), (9920, 788836), (12338, 634240), (12736, 614420), (15856, 493520), (15920, 491536), (19820, 394816), (19840, 394418), (24676, 317120), (25472, 307210), (30721, 254720), (30845, 253696), (31712, 246760), (31840, 245768), (39640, 197408), (39680, 197209), (49352, 158560), (50944, 153605), (61442, 127360), (61690, 126848), (63424, 123380), (63680, 122884), (79280, 98704)]