129022720

素因数分解:

$2^8\times 5^1\times {\mathrm{100799}}^1$

素因数の和:100820

約数の個数: 36

約数和(自身を含む): 309052800

約数和(自身を除く): 180030080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 100799, 201598, 403196, 503995, 806392, 1007990, 1612784, 2015980, 3225568, 4031960, 6451136, 8063920, 12902272, 16127840, 25804544, 32255680, 64511360, 129022720]

約数ペア:

[(1, 129022720), (2, 64511360), (4, 32255680), (5, 25804544), (8, 16127840), (10, 12902272), (16, 8063920), (20, 6451136), (32, 4031960), (40, 3225568), (64, 2015980), (80, 1612784), (128, 1007990), (160, 806392), (256, 503995), (320, 403196), (640, 201598), (1280, 100799)]