28666640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6761}}^1$

素因数の和:6827

約数の個数: 40

約数和(自身を含む): 67917528

約数和(自身を除く): 39250888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 6761, 13522, 27044, 33805, 54088, 67610, 108176, 135220, 270440, 358333, 540880, 716666, 1433332, 1791665, 2866664, 3583330, 5733328, 7166660, 14333320, 28666640]

約数ペア:

[(1, 28666640), (2, 14333320), (4, 7166660), (5, 5733328), (8, 3583330), (10, 2866664), (16, 1791665), (20, 1433332), (40, 716666), (53, 540880), (80, 358333), (106, 270440), (212, 135220), (265, 108176), (424, 67610), (530, 54088), (848, 33805), (1060, 27044), (2120, 13522), (4240, 6761)]