28477288

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 63705600

約数和(自身を除く): 35228312

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 79, 82, 157, 158, 164, 287, 314, 316, 328, 553, 574, 628, 632, 1099, 1106, 1148, 1256, 2198, 2212, 2296, 3239, 4396, 4424, 6437, 6478, 8792, 12403, 12874, 12956, 22673, 24806, 25748, 25912, 45059, 45346, 49612, 51496, 86821, 90118, 90692, 99224, 173642, 180236, 181384, 347284, 360472, 508523, 694568, 1017046, 2034092, 3559661, 4068184, 7119322, 14238644, 28477288]

約数ペア:

[(1, 28477288), (2, 14238644), (4, 7119322), (7, 4068184), (8, 3559661), (14, 2034092), (28, 1017046), (41, 694568), (56, 508523), (79, 360472), (82, 347284), (157, 181384), (158, 180236), (164, 173642), (287, 99224), (314, 90692), (316, 90118), (328, 86821), (553, 51496), (574, 49612), (628, 45346), (632, 45059), (1099, 25912), (1106, 25748), (1148, 24806), (1256, 22673), (2198, 12956), (2212, 12874), (2296, 12403), (3239, 8792), (4396, 6478), (4424, 6437)]