40664120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20747}}^1$

素因数の和:20772

約数の個数: 48

約数和(自身を含む): 106437240

約数和(自身を除く): 65773120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20747, 41494, 82988, 103735, 145229, 165976, 207470, 290458, 414940, 580916, 726145, 829880, 1016603, 1161832, 1452290, 2033206, 2904580, 4066412, 5083015, 5809160, 8132824, 10166030, 20332060, 40664120]

約数ペア:

[(1, 40664120), (2, 20332060), (4, 10166030), (5, 8132824), (7, 5809160), (8, 5083015), (10, 4066412), (14, 2904580), (20, 2033206), (28, 1452290), (35, 1161832), (40, 1016603), (49, 829880), (56, 726145), (70, 580916), (98, 414940), (140, 290458), (196, 207470), (245, 165976), (280, 145229), (392, 103735), (490, 82988), (980, 41494), (1960, 20747)]