28771840

素因数分解:

$2^9\times 5^1\times {\mathrm{11239}}^1$

素因数の和:11262

約数の個数: 40

約数和(自身を含む): 68991120

約数和(自身を除く): 40219280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 11239, 22478, 44956, 56195, 89912, 112390, 179824, 224780, 359648, 449560, 719296, 899120, 1438592, 1798240, 2877184, 3596480, 5754368, 7192960, 14385920, 28771840]

約数ペア:

[(1, 28771840), (2, 14385920), (4, 7192960), (5, 5754368), (8, 3596480), (10, 2877184), (16, 1798240), (20, 1438592), (32, 899120), (40, 719296), (64, 449560), (80, 359648), (128, 224780), (160, 179824), (256, 112390), (320, 89912), (512, 56195), (640, 44956), (1280, 22478), (2560, 11239)]