79743680

素因数分解:

$2^6\times 5^1\times {\mathrm{249199}}^1$

素因数の和:249216

約数の個数: 28

約数和(自身を含む): 189890400

約数和(自身を除く): 110146720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 249199, 498398, 996796, 1245995, 1993592, 2491990, 3987184, 4983980, 7974368, 9967960, 15948736, 19935920, 39871840, 79743680]

約数ペア:

[(1, 79743680), (2, 39871840), (4, 19935920), (5, 15948736), (8, 9967960), (10, 7974368), (16, 4983980), (20, 3987184), (32, 2491990), (40, 1993592), (64, 1245995), (80, 996796), (160, 498398), (320, 249199)]