155219840

素因数分解:

$2^7\times 5^1\times {\mathrm{283}}^1\times {\mathrm{857}}^1$

素因数の和:1159

約数の個数: 64

約数和(自身を含む): 372818160

約数和(自身を除く): 217598320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 283, 320, 566, 640, 857, 1132, 1415, 1714, 2264, 2830, 3428, 4285, 4528, 5660, 6856, 8570, 9056, 11320, 13712, 17140, 18112, 22640, 27424, 34280, 36224, 45280, 54848, 68560, 90560, 109696, 137120, 181120, 242531, 274240, 485062, 548480, 970124, 1212655, 1940248, 2425310, 3880496, 4850620, 7760992, 9701240, 15521984, 19402480, 31043968, 38804960, 77609920, 155219840]

約数ペア:

[(1, 155219840), (2, 77609920), (4, 38804960), (5, 31043968), (8, 19402480), (10, 15521984), (16, 9701240), (20, 7760992), (32, 4850620), (40, 3880496), (64, 2425310), (80, 1940248), (128, 1212655), (160, 970124), (283, 548480), (320, 485062), (566, 274240), (640, 242531), (857, 181120), (1132, 137120), (1415, 109696), (1714, 90560), (2264, 68560), (2830, 54848), (3428, 45280), (4285, 36224), (4528, 34280), (5660, 27424), (6856, 22640), (8570, 18112), (9056, 17140), (11320, 13712)]