80078740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1993}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 200492712

約数和(自身を除く): 120413972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 1993, 2009, 2870, 3986, 4018, 5740, 7972, 8036, 9965, 10045, 13951, 19930, 20090, 27902, 39860, 40180, 55804, 69755, 81713, 97657, 139510, 163426, 195314, 279020, 326852, 390628, 408565, 488285, 571991, 817130, 976570, 1143982, 1634260, 1953140, 2287964, 2859955, 4003937, 5719910, 8007874, 11439820, 16015748, 20019685, 40039370, 80078740]

約数ペア:

[(1, 80078740), (2, 40039370), (4, 20019685), (5, 16015748), (7, 11439820), (10, 8007874), (14, 5719910), (20, 4003937), (28, 2859955), (35, 2287964), (41, 1953140), (49, 1634260), (70, 1143982), (82, 976570), (98, 817130), (140, 571991), (164, 488285), (196, 408565), (205, 390628), (245, 326852), (287, 279020), (410, 195314), (490, 163426), (574, 139510), (820, 97657), (980, 81713), (1148, 69755), (1435, 55804), (1993, 40180), (2009, 39860), (2870, 27902), (3986, 20090), (4018, 19930), (5740, 13951), (7972, 10045), (8036, 9965)]