28516480

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2621}}^1$

素因数の和:2657

約数の個数: 64

約数和(自身を含む): 72209880

約数和(自身を除く): 43693400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2621, 2720, 5242, 5440, 10484, 10880, 13105, 20968, 26210, 41936, 44557, 52420, 83872, 89114, 104840, 167744, 178228, 209680, 222785, 335488, 356456, 419360, 445570, 712912, 838720, 891140, 1425824, 1677440, 1782280, 2851648, 3564560, 5703296, 7129120, 14258240, 28516480]

約数ペア:

[(1, 28516480), (2, 14258240), (4, 7129120), (5, 5703296), (8, 3564560), (10, 2851648), (16, 1782280), (17, 1677440), (20, 1425824), (32, 891140), (34, 838720), (40, 712912), (64, 445570), (68, 419360), (80, 356456), (85, 335488), (128, 222785), (136, 209680), (160, 178228), (170, 167744), (272, 104840), (320, 89114), (340, 83872), (544, 52420), (640, 44557), (680, 41936), (1088, 26210), (1360, 20968), (2176, 13105), (2621, 10880), (2720, 10484), (5242, 5440)]