28036480

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:707

約数の個数: 64

約数和(自身を含む): 68078880

約数和(自身を除く): 40042400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 617, 640, 710, 1136, 1234, 1420, 2272, 2468, 2840, 3085, 4544, 4936, 5680, 6170, 9088, 9872, 11360, 12340, 19744, 22720, 24680, 39488, 43807, 45440, 49360, 78976, 87614, 98720, 175228, 197440, 219035, 350456, 394880, 438070, 700912, 876140, 1401824, 1752280, 2803648, 3504560, 5607296, 7009120, 14018240, 28036480]

約数ペア:

[(1, 28036480), (2, 14018240), (4, 7009120), (5, 5607296), (8, 3504560), (10, 2803648), (16, 1752280), (20, 1401824), (32, 876140), (40, 700912), (64, 438070), (71, 394880), (80, 350456), (128, 219035), (142, 197440), (160, 175228), (284, 98720), (320, 87614), (355, 78976), (568, 49360), (617, 45440), (640, 43807), (710, 39488), (1136, 24680), (1234, 22720), (1420, 19744), (2272, 12340), (2468, 11360), (2840, 9872), (3085, 9088), (4544, 6170), (4936, 5680)]