1278031360

素因数分解:

$2^9\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2789}}^1$

素因数の和:2991

約数の個数: 80

約数和(自身を含む): 3082503600

約数和(自身を除く): 1804472240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 179, 256, 320, 358, 512, 640, 716, 895, 1280, 1432, 1790, 2560, 2789, 2864, 3580, 5578, 5728, 7160, 11156, 11456, 13945, 14320, 22312, 22912, 27890, 28640, 44624, 45824, 55780, 57280, 89248, 91648, 111560, 114560, 178496, 223120, 229120, 356992, 446240, 458240, 499231, 713984, 892480, 998462, 1427968, 1784960, 1996924, 2496155, 3569920, 3993848, 4992310, 7139840, 7987696, 9984620, 15975392, 19969240, 31950784, 39938480, 63901568, 79876960, 127803136, 159753920, 255606272, 319507840, 639015680, 1278031360]

約数ペア:

[(1, 1278031360), (2, 639015680), (4, 319507840), (5, 255606272), (8, 159753920), (10, 127803136), (16, 79876960), (20, 63901568), (32, 39938480), (40, 31950784), (64, 19969240), (80, 15975392), (128, 9984620), (160, 7987696), (179, 7139840), (256, 4992310), (320, 3993848), (358, 3569920), (512, 2496155), (640, 1996924), (716, 1784960), (895, 1427968), (1280, 998462), (1432, 892480), (1790, 713984), (2560, 499231), (2789, 458240), (2864, 446240), (3580, 356992), (5578, 229120), (5728, 223120), (7160, 178496), (11156, 114560), (11456, 111560), (13945, 91648), (14320, 89248), (22312, 57280), (22912, 55780), (27890, 45824), (28640, 44624)]