80121670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 159989760

約数和(自身を除く): 79868090

約数列:

[1, 2, 5, 10, 19, 31, 38, 61, 62, 95, 122, 155, 190, 223, 305, 310, 446, 589, 610, 1115, 1159, 1178, 1891, 2230, 2318, 2945, 3782, 4237, 5795, 5890, 6913, 8474, 9455, 11590, 13603, 13826, 18910, 21185, 27206, 34565, 35929, 42370, 68015, 69130, 71858, 131347, 136030, 179645, 258457, 262694, 359290, 421693, 516914, 656735, 843386, 1292285, 1313470, 2108465, 2584570, 4216930, 8012167, 16024334, 40060835, 80121670]

約数ペア:

[(1, 80121670), (2, 40060835), (5, 16024334), (10, 8012167), (19, 4216930), (31, 2584570), (38, 2108465), (61, 1313470), (62, 1292285), (95, 843386), (122, 656735), (155, 516914), (190, 421693), (223, 359290), (305, 262694), (310, 258457), (446, 179645), (589, 136030), (610, 131347), (1115, 71858), (1159, 69130), (1178, 68015), (1891, 42370), (2230, 35929), (2318, 34565), (2945, 27206), (3782, 21185), (4237, 18910), (5795, 13826), (5890, 13603), (6913, 11590), (8474, 9455)]