28708316

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{593}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 66361680

約数和(自身を除く): 37653364

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 49, 52, 76, 91, 98, 133, 182, 196, 247, 266, 364, 494, 532, 593, 637, 931, 988, 1186, 1274, 1729, 1862, 2372, 2548, 3458, 3724, 4151, 6916, 7709, 8302, 11267, 12103, 15418, 16604, 22534, 24206, 29057, 30836, 45068, 48412, 53963, 58114, 78869, 107926, 116228, 146471, 157738, 215852, 292942, 315476, 377741, 552083, 585884, 755482, 1025297, 1104166, 1510964, 2050594, 2208332, 4101188, 7177079, 14354158, 28708316]

約数ペア:

[(1, 28708316), (2, 14354158), (4, 7177079), (7, 4101188), (13, 2208332), (14, 2050594), (19, 1510964), (26, 1104166), (28, 1025297), (38, 755482), (49, 585884), (52, 552083), (76, 377741), (91, 315476), (98, 292942), (133, 215852), (182, 157738), (196, 146471), (247, 116228), (266, 107926), (364, 78869), (494, 58114), (532, 53963), (593, 48412), (637, 45068), (931, 30836), (988, 29057), (1186, 24206), (1274, 22534), (1729, 16604), (1862, 15418), (2372, 12103), (2548, 11267), (3458, 8302), (3724, 7709), (4151, 6916)]