78845440

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1621}}^1$

素因数の和:1663

約数の個数: 80

約数和(自身を含む): 199116720

約数和(自身を除く): 120271280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1216, 1280, 1520, 1621, 2432, 2560, 3040, 3242, 4864, 6080, 6484, 8105, 9728, 12160, 12968, 16210, 24320, 25936, 30799, 32420, 48640, 51872, 61598, 64840, 103744, 123196, 129680, 153995, 207488, 246392, 259360, 307990, 414976, 492784, 518720, 615980, 829952, 985568, 1037440, 1231960, 1971136, 2074880, 2463920, 3942272, 4149760, 4927840, 7884544, 9855680, 15769088, 19711360, 39422720, 78845440]

約数ペア:

[(1, 78845440), (2, 39422720), (4, 19711360), (5, 15769088), (8, 9855680), (10, 7884544), (16, 4927840), (19, 4149760), (20, 3942272), (32, 2463920), (38, 2074880), (40, 1971136), (64, 1231960), (76, 1037440), (80, 985568), (95, 829952), (128, 615980), (152, 518720), (160, 492784), (190, 414976), (256, 307990), (304, 259360), (320, 246392), (380, 207488), (512, 153995), (608, 129680), (640, 123196), (760, 103744), (1216, 64840), (1280, 61598), (1520, 51872), (1621, 48640), (2432, 32420), (2560, 30799), (3040, 25936), (3242, 24320), (4864, 16210), (6080, 12968), (6484, 12160), (8105, 9728)]