208712728

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{70321}}^1$

素因数の和:70387

約数の個数: 32

約数和(自身を含む): 455686560

約数和(自身を除く): 246973832

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 70321, 140642, 281284, 492247, 562568, 984494, 1968988, 3727013, 3937976, 7454026, 14908052, 26089091, 29816104, 52178182, 104356364, 208712728]

約数ペア:

[(1, 208712728), (2, 104356364), (4, 52178182), (7, 29816104), (8, 26089091), (14, 14908052), (28, 7454026), (53, 3937976), (56, 3727013), (106, 1968988), (212, 984494), (371, 562568), (424, 492247), (742, 281284), (1484, 140642), (2968, 70321)]