64478720

素因数分解:

$2^9\times 5^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:395

約数の個数: 80

約数和(自身を含む): 156887280

約数和(自身を除く): 92408560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 283, 320, 356, 445, 512, 566, 640, 712, 890, 1132, 1280, 1415, 1424, 1780, 2264, 2560, 2830, 2848, 3560, 4528, 5660, 5696, 7120, 9056, 11320, 11392, 14240, 18112, 22640, 22784, 25187, 28480, 36224, 45280, 45568, 50374, 56960, 72448, 90560, 100748, 113920, 125935, 144896, 181120, 201496, 227840, 251870, 362240, 402992, 503740, 724480, 805984, 1007480, 1611968, 2014960, 3223936, 4029920, 6447872, 8059840, 12895744, 16119680, 32239360, 64478720]

約数ペア:

[(1, 64478720), (2, 32239360), (4, 16119680), (5, 12895744), (8, 8059840), (10, 6447872), (16, 4029920), (20, 3223936), (32, 2014960), (40, 1611968), (64, 1007480), (80, 805984), (89, 724480), (128, 503740), (160, 402992), (178, 362240), (256, 251870), (283, 227840), (320, 201496), (356, 181120), (445, 144896), (512, 125935), (566, 113920), (640, 100748), (712, 90560), (890, 72448), (1132, 56960), (1280, 50374), (1415, 45568), (1424, 45280), (1780, 36224), (2264, 28480), (2560, 25187), (2830, 22784), (2848, 22640), (3560, 18112), (4528, 14240), (5660, 11392), (5696, 11320), (7120, 9056)]