75544540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 162288000

約数和(自身を除く): 86743460

約数列:

[1, 2, 4, 5, 10, 20, 79, 137, 158, 274, 316, 349, 395, 548, 685, 698, 790, 1370, 1396, 1580, 1745, 2740, 3490, 6980, 10823, 21646, 27571, 43292, 47813, 54115, 55142, 95626, 108230, 110284, 137855, 191252, 216460, 239065, 275710, 478130, 551420, 956260, 3777227, 7554454, 15108908, 18886135, 37772270, 75544540]

約数ペア:

[(1, 75544540), (2, 37772270), (4, 18886135), (5, 15108908), (10, 7554454), (20, 3777227), (79, 956260), (137, 551420), (158, 478130), (274, 275710), (316, 239065), (349, 216460), (395, 191252), (548, 137855), (685, 110284), (698, 108230), (790, 95626), (1370, 55142), (1396, 54115), (1580, 47813), (1745, 43292), (2740, 27571), (3490, 21646), (6980, 10823)]