39322880

素因数分解:

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

素因数の和:1043

約数の個数: 72

約数和(自身を含む): 97327104

約数和(自身を除く): 58004224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 991, 992, 1240, 1280, 1982, 1984, 2480, 3964, 3968, 4955, 4960, 7928, 7936, 9910, 9920, 15856, 19820, 19840, 30721, 31712, 39640, 39680, 61442, 63424, 79280, 122884, 126848, 153605, 158560, 245768, 253696, 307210, 317120, 491536, 614420, 634240, 983072, 1228840, 1268480, 1966144, 2457680, 3932288, 4915360, 7864576, 9830720, 19661440, 39322880]

約数ペア:

[(1, 39322880), (2, 19661440), (4, 9830720), (5, 7864576), (8, 4915360), (10, 3932288), (16, 2457680), (20, 1966144), (31, 1268480), (32, 1228840), (40, 983072), (62, 634240), (64, 614420), (80, 491536), (124, 317120), (128, 307210), (155, 253696), (160, 245768), (248, 158560), (256, 153605), (310, 126848), (320, 122884), (496, 79280), (620, 63424), (640, 61442), (991, 39680), (992, 39640), (1240, 31712), (1280, 30721), (1982, 19840), (1984, 19820), (2480, 15856), (3964, 9920), (3968, 9910), (4955, 7936), (4960, 7928)]