28744072

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 64235520

約数和(自身を除く): 35491448

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 67, 94, 134, 163, 188, 268, 326, 329, 376, 469, 536, 652, 658, 938, 1141, 1304, 1316, 1876, 2282, 2632, 3149, 3752, 4564, 6298, 7661, 9128, 10921, 12596, 15322, 21842, 22043, 25192, 30644, 43684, 44086, 53627, 61288, 76447, 87368, 88172, 107254, 152894, 176344, 214508, 305788, 429016, 513287, 611576, 1026574, 2053148, 3593009, 4106296, 7186018, 14372036, 28744072]

約数ペア:

[(1, 28744072), (2, 14372036), (4, 7186018), (7, 4106296), (8, 3593009), (14, 2053148), (28, 1026574), (47, 611576), (56, 513287), (67, 429016), (94, 305788), (134, 214508), (163, 176344), (188, 152894), (268, 107254), (326, 88172), (329, 87368), (376, 76447), (469, 61288), (536, 53627), (652, 44086), (658, 43684), (938, 30644), (1141, 25192), (1304, 22043), (1316, 21842), (1876, 15322), (2282, 12596), (2632, 10921), (3149, 9128), (3752, 7661), (4564, 6298)]