28313740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:407

約数の個数: 96

約数和(自身を含む): 74962944

約数和(自身を除く): 46649204

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 47, 52, 65, 70, 91, 94, 130, 140, 182, 188, 235, 260, 329, 331, 364, 455, 470, 611, 658, 662, 910, 940, 1222, 1316, 1324, 1645, 1655, 1820, 2317, 2444, 3055, 3290, 3310, 4277, 4303, 4634, 6110, 6580, 6620, 8554, 8606, 9268, 11585, 12220, 15557, 17108, 17212, 21385, 21515, 23170, 30121, 31114, 42770, 43030, 46340, 60242, 62228, 77785, 85540, 86060, 108899, 120484, 150605, 155570, 202241, 217798, 301210, 311140, 404482, 435596, 544495, 602420, 808964, 1011205, 1088990, 1415687, 2022410, 2177980, 2831374, 4044820, 5662748, 7078435, 14156870, 28313740]

約数ペア:

[(1, 28313740), (2, 14156870), (4, 7078435), (5, 5662748), (7, 4044820), (10, 2831374), (13, 2177980), (14, 2022410), (20, 1415687), (26, 1088990), (28, 1011205), (35, 808964), (47, 602420), (52, 544495), (65, 435596), (70, 404482), (91, 311140), (94, 301210), (130, 217798), (140, 202241), (182, 155570), (188, 150605), (235, 120484), (260, 108899), (329, 86060), (331, 85540), (364, 77785), (455, 62228), (470, 60242), (611, 46340), (658, 43030), (662, 42770), (910, 31114), (940, 30121), (1222, 23170), (1316, 21515), (1324, 21385), (1645, 17212), (1655, 17108), (1820, 15557), (2317, 12220), (2444, 11585), (3055, 9268), (3290, 8606), (3310, 8554), (4277, 6620), (4303, 6580), (4634, 6110)]