13204060

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 28748160

約数和(自身を除く): 15544100

約数列:

[1, 2, 4, 5, 10, 20, 61, 79, 122, 137, 158, 244, 274, 305, 316, 395, 548, 610, 685, 790, 1220, 1370, 1580, 2740, 4819, 8357, 9638, 10823, 16714, 19276, 21646, 24095, 33428, 41785, 43292, 48190, 54115, 83570, 96380, 108230, 167140, 216460, 660203, 1320406, 2640812, 3301015, 6602030, 13204060]

約数ペア:

[(1, 13204060), (2, 6602030), (4, 3301015), (5, 2640812), (10, 1320406), (20, 660203), (61, 216460), (79, 167140), (122, 108230), (137, 96380), (158, 83570), (244, 54115), (274, 48190), (305, 43292), (316, 41785), (395, 33428), (548, 24095), (610, 21646), (685, 19276), (790, 16714), (1220, 10823), (1370, 9638), (1580, 8357), (2740, 4819)]